Palawan and the Marine Environment

As of 2026-08-30 · Updated 2026-08-30 · Section: Regions & the Bangsamoro · 日本語版

Palawan is the country's largest province by land area, known as "The Last Frontier." Two World Heritage sites, a unique environmental law (the SEP Act), the country's only natural-gas field, and the front line of the South China Sea — all four coexist in a single province. Tourism topped 2 million annual visitors for the first time in 2025, and at the same time "carrying capacity" has become a policy issue.

1. The Big Picture — Key Numbers

Why It's Called "The Last Frontier"

• Low population density with vast undeveloped land: the largest land area in the country paired with among the lowest population densities. Nature has survived precisely because development lagged.
• Biogeographic distinctiveness: during ice ages, Palawan was connected by land to Borneo (Sundaland), so its biota is closer to Borneo's than to the rest of the Philippines. This underlies its high number of endemic species, and is the real reason for the "Philippine, yet un-Philippine-like" character of its nature.
• Distinct institutional treatment: under the SEP Act (RA 7611), discussed below, Palawan alone has its own environmental council (the PCSD).

注 "The Last Frontier" isn't just a tourism slogan — it also carries the meaning of being a front line under development pressure. Within the province, the phrase "the Last Ecological Frontier" has also taken hold.

The 2021 "Divide Palawan into Three" Plebiscite — Rejected

Based on RA 11259, enacted in 2019, a proposal to split the province into Palawan del Norte, del Sur, and Oriental was rejected in a March 13, 2021 plebiscite (172,304 against vs. 122,223 in favor, roughly 60% turnout, COMELEC). Environmental NGOs had opposed the split, arguing that splitting a key biodiversity area across multiple provinces would make enforcement even harder. Palawan remains a single province today.

2. Two World Heritage Sites

2-1. Puerto Princesa Subterranean River National Park (PPSRNP)

• A daily visitor cap of 900 people is in place, and an advance permit is required ("No Permit, No Entry"). Some sources cite a cap of 1,200, so the figure varies — check with the park office at the time of your visit.
• A 2010 survey found a second-level chamber and a dome-shaped space 300 m above the riverbed inside the cave.
• An open letter that spread widely on social media in October 2025 criticized queue management, aging facilities, and service standards. In response, electrified boats and digital reservations are being rolled out in 2026 (not yet complete — to be confirmed).

2-2. Tubbataha Reefs Natural Park (TRNP)

• Multiple, overlapping international designations: a Ramsar wetland (1999), an ASEAN Heritage Park (2014), an EAAFP Network Site for migratory birds (2015), an IMO Particularly Sensitive Sea Area (PSSA, 2017), a Blue Parks Platinum site (2017), a Mission Blue Hope Spot (2022), and an Important Shark and Ray Area (ISRA, 2022).
• Access is by liveaboard only. The season runs for only about 10 weeks, mid-March to mid-June, closed the rest of the year due to sea conditions. It's roughly a 10-hour voyage from Puerto Princesa.
• The conservation fee is generally cited as about US$145 or ₱5,000 per diver, but figures ranging from US$100–145 vary by source (depending on diver/non-diver categories and whether packages are included). Regular sunscreen is banned inside the park (reef-safe only).
• Coral bleaching: in 2020, up to 20% of hard-coral cover was affected, and cover declined further in 2021. Notable bleaching recurred during the 2024 El Niño (e.g., at the South Park site on the North Atoll, per TMO).
• IUCN World Heritage Outlook 2025: management is assessed as "effective," but the report cites ocean acidification and rising sea temperatures as the greatest threats, alongside the lack of a sustainable financing plan and dive-management plan, and rising marine debris from outside sources. Ranger patrols totaled 162 in 2024 (against a mandated 120).

3. Tourism — El Nido, Coron, and Port Barton

2025 arrivals by destination (PTPDO, TourLISTA compilation, accommodation-based)

• The breakdown is 52% domestic (1,098,833) and 48% foreign (1,027,601). By nationality, foreign arrivals were led by the United States (7.13%), followed by France (5.92%), the UK (4.50%), Germany (3.83%), and Spain (3.58%). A notably high share of European visitors is a defining feature of Palawan tourism.
• 注 These figures count overnight guests only and exclude day-trippers, so actual visitor numbers are higher still.

El Nido — Limestone Islands and the "Carrying Capacity" Problem

• Island-hopping tours (Tours A–D) covering the Big Lagoon, Small Lagoon, Seven Commandos Beach, and others are the main draw. Bacuit Bay as a whole is a protected area.
• The Ecotourism Development Fee (ETDF): introduced under a 2024 town ordinance (No. 1). A revision from the previous environmental fee of ₱200 (valid 10 days, ₱500 for overstaying) to ₱400 has been announced, but guidance citing ₱200 is still circulating as of 2026 — 注 check on the ground. Five percent of the fund is allocated to the Local Disaster Risk Reduction and Management Fund (LDRRMF) and cannot be used for regular staff salaries.
• Lagging wastewater treatment: as of January 2025, only 3.3% of roughly 900 households in the town center are connected to sewage service (versus 82% of the 670 commercial establishments). DENR data shows fecal coliform levels in coastal waters consistently exceeding swimming-safety limits from 2019 to 2023 (Mongabay reporting, February 2025). "Postcard-perfect water" and "water quality" turn out to be two different things.
• Daily visitor caps are beginning to be imposed at major sites (implementation varies by site).

Coron/Busuanga — Wreck Diving and the Tagbanua

• On September 24, 1944, a US Task Force 38 (TF38) air raid sank a Japanese convoy that had taken refuge in Coron Bay. Akitsushima (a seaplane tender), Irako, Kogyo Maru, Okikawa Maru, Olympia Maru, and Kyokuzan Maru, among others — 12 Japanese wrecks lie around Busuanga.
• Depths range widely, from 5 to 46 m; the Lusong Gunboat is partly exposed above the waterline and visible even while snorkeling. Akitsushima lies on its side at a depth of about 36 m.
• 注 These wrecks are also war graves. Visitors from Japan should understand that they may be regarded as memorial sites.
• Coron Island is the ancestral domain of the indigenous Calamian Tagbanua, transitioning from a CADC (R04-CADC-134) in 1998 to a CADT (Certificate of Ancestral Domain Title) in 2001–2002. Of a total area of about 24,520 ha, 17,012 ha is marine — the first ancestral domain in the Philippines to include the sea. Twelve inland lakes (including Kayangan Lake and Barracuda Lake) are also covered, and coordination between tourism use and traditional management continues.

Port Barton (Municipality of San Vicente)

• On the west coast of the main island, roughly midway between Puerto Princesa and El Nido. A quiet destination where large-scale resort development has not taken hold, with small lodges powered mostly by generators. Sea turtle-watching and coral-reef snorkeling are its main draws. San Vicente has a 14.7 km "Long Beach," and an airport has also been developed there.

4. Biodiversity — an Island of Endemic Species

• At sea, dugongs and hawksbill turtles feed off the coast of the PPSRNP, and Tubbataha is a key habitat for sharks, manta rays, and sea turtles.
• Almaciga (Agathis philippinensis): the dominant tree of highland old-growth forest. Its resin (Manila copal) is used to make varnish, and is said to account for up to 80% of the income of forest-dependent residents and indigenous communities around Palawan. Listed as "Vulnerable" by the IUCN. Excessive resin tapping is driving pest damage and tree death, putting livelihoods and conservation in direct conflict.

Forests — Behind the Myth of "a Heavily Forested Province"

• The rate of loss from 1979–1984 was 19,000 ha a year. The SEP Act's ban on commercial logging brought that down to around 5,500 ha a year, but the decline has not stopped.
• According to Global Forest Watch, Palawan lost 163,000 ha of tree cover between 2001 and 2020 — the largest loss of any province in the country (against a national average of 15,900 ha). 注 The impression that "Palawan's forests are protected" conflates a large remaining absolute quantity with the absence of ongoing decline — these are not the same thing.
• On June 19, 2025 (the SEP Act's 33rd anniversary), the provincial government, PCSD, and USAID SIBOL, among others, published the "Forest and Landscape Restoration Plan (FLRP) 2025–2029." The total project cost was reported at about ₱3.5 billion.

Indigenous Peoples

• The Palaw'an (Palawano): 119,857 people per the 2020 census. The origin of the province's name. Concentrated in the south, and including the Tau't Bato ("people of the rocks"), who live seasonally in caves.
• The Tagbanua: found in the central Calamian Islands. Known for the ancestral marine domain mentioned above.
• The Batak: a Negrito group, living within about 50 km northeast of Puerto Princesa. Numbering about 1,500 as of the 2020 census, they are often described as "a vanishing people."
• The Molbog: around Balabac at the southern tip, the community at the center of the Bugsuk Island dispute discussed below.

5. Environmental Law and Development Pressure

5-1. The SEP Act (RA 7611) and the PCSD

• The "Strategic Environmental Plan for Palawan Act," enacted in 1992. A special law applying only to Palawan province, it established the Palawan Council for Sustainable Development (PCSD) and its secretariat (PCSDS).
• Its core is ECAN (the Environmentally Critical Areas Network), which regulates what development is permitted, in stages, across the whole province.

• A project cannot proceed without obtaining an SEP Clearance from the PCSD. This is separate from DENR's Environmental Compliance Certificate (ECC), and 注 it's easy to overlook that operating in Palawan means a "double gate" of ECC plus SEP Clearance.
• Institutional reforms in progress: in 2021 the PCSDS announced plans to amend the SEP's Implementing Rules and Regulations (IRR) to strengthen protection of lowland areas at elevations of 200–500 m. A bill has been filed in Congress (the HB 4303 series) that would amend RA 7611 and replace it with an "SDP (Sustainable Development for Palawan)" framework (passage remains unconfirmed as of August 2026).

5-2. The Mining Moratorium and the Supreme Court Ruling — Currently the Biggest Flashpoint

• A limit on Ordinance No. 3646: existing mining claims are exempt. In effect, "new applications are halted, but existing ones are not."
• On August 16, 2023, the Supreme Court issued a Writ of Kalikasan (an environmental-protection writ) against the DENR, the Mines and Geosciences Bureau, Ipilan Nickel, and Celestial Nickel Mining, covering the ancestral domain of Palaw'an communities around Mt. Mantalingajan; the case remains ongoing.
• The legal argument for protection: that the existence of the SEP Act and the PCSD gives Palawan a distinct legal status from other provinces. If accepted, analysts say it could set a precedent for "a hybrid model of national law and local ordinance in environmental governance." 注 Whether the Mindoro ruling can simply be applied to Palawan remains unresolved.

5-3. The Bugsuk Island/Sitio Mariahangin Dispute (Balabac)

• A 5,500-hectare high-end ecotourism development proposed by Bricktree Properties, part of San Miguel Corporation (SMC) (targeted for completion in 2038, per DENR's environmental impact documents).
• Historical background: in 1974, the Marcos Sr. administration granted 10,821 hectares of Bugsuk and Pandanan Islands to Eduardo "Danding" Cojuangco Jr., displacing residents by force. Sitio Mariahangin was excluded from that grant and became a refuge for people who had nowhere else to go.
• In June 2024, residents were notified of eviction, and around April 4, 2025, about 80 armed security personnel deployed to Sitio Mariahangin. SMC has asserted "legitimate title to 7,000 hectares" while denying any involvement in Mariahangin.
• Over 90 households have rejected a compensation offer of ₱400,000 per household. The Molbog people have applied for a CADT (Certificate of Ancestral Domain Title), which remains unprocessed. The Catholic Educational Association of the Philippines (CEAP) and the Bishop of Palawan have issued statements supporting the residents.

6. The Malampaya Gas Field and Energy Security

• The Philippines' only commercially producing domestic natural-gas source, a deepwater field off northwestern Palawan under Service Contract 38 (SC 38). Once operated by Shell, it is now operated by Prime Energy, part of Prime Infra, led by Enrique Razon Jr.
• Government revenue from the field has exceeded US$14 billion since production began. It fuels Luzon's major gas-fired power plants (Ilijan, Santa Rita, San Lorenzo, and others), so its depletion would mean a restructuring of Luzon's power mix.

Developments in 2026 — Phase 4 (MP4)

Reed Bank (Recto Bank) — a Giant Gas Resource Left Untapped

• SC 72: an 8,800 km² block west of Palawan, southwest of Malampaya. Operated by PXP Energy (part of the Manuel V. Pangilinan group). A state of force majeure has been in effect since December 15, 2014, and had still not been lifted as of May 2026 (the same is true for SC 75).
• The most promising structure, Sampaguita, is estimated to hold up to 4.6 trillion cubic feet (TCF). Figures such as "5.4 billion barrels of oil / 55.1 TCF of gas" are sometimes cited as high-end estimates for the South China Sea as a whole, but 注 the range of these estimates is extremely wide, and they are not proven reserves.
• 2026 diplomacy: in March, the Philippines and China resumed preliminary talks on gas cooperation, and in August 2026, President Marcos called joint exploration with China a "distinct possibility." Former Supreme Court Justice Carpio and others have criticized this as "a trap that would effectively cede sovereign rights," and outlets such as East Asia Forum have similarly argued that joint development is a "strategic trap." 注 Resumed talks are not the same as an agreement — negotiations have broken down repeatedly in the past.
• The June 9, 2019 Reed Bank incident: a Chinese fishing vessel collided with and sank the Philippine boat "F/B Gem-Ver"; the crew were rescued by a Vietnamese fishing boat. This is why Reed Bank symbolizes both "resources" and "confrontation."

7. Palawan as the Front Line of the South China Sea

The Kalayaan Island Group (Spratly Islands)

• Palawan's Municipality of Kalayaan consists of a single barangay, "Pag-asa," with its town hall on Pag-asa Island (Thitu Island, 37 ha). It is the largest of the 9 features the Philippines effectively controls, located about 450 km from mainland Palawan. Its population is about 400.
• 注 This is not "a dispute over uninhabited rocks." For the Philippines, it is an inhabited municipality and part of the province.
• Infrastructure development: about ₱2.3 billion in 2024, and an additional ₱3.03 billion in 2025 (₱1.65 billion for Pag-asa Airport, ₱300 million for an evacuation port, and ₱1.08 billion for the second phase of an evacuation port on Lawak Island). In June 2025, the runway extension at Rancudo Airfield was completed, allowing it to accommodate larger fixed-wing aircraft. In May 2026, the Department of National Defense dismissed China's protest, calling the work "within the scope of sovereign rights."
• The Philippine Maritime Zones Act (RA 12064) and the Archipelagic Sea Lanes Act (RA 12065): signed on November 7, 2024, and took effect November 28. (Confirmed in the 2026-08-25 cross-check. The reference "Geography and Administrative Divisions" had stated "November 8," but the original text of RA 12064 as posted at LawPhil reads "Approved: NOV 07 2024," so this article's date of November 7 is correct, and the other reference was corrected accordingly. Source: lawphil.net/statutes/repacts/ra2024/ra_12064_2024.html.) These laws define internal waters, archipelagic waters, the territorial sea, the contiguous zone, the EEZ, and the continental shelf in line with UNCLOS and the 2016 arbitral ruling. China has protested; the US and Australia have expressed support; Malaysia has objected over matters related to Sabah.

Fishers' Livelihoods and Encounters with the China Coast Guard (CCG)

• Impact on fishing: fisherfolk groups claim that "West Philippine Sea catches have fallen 70% since 2020" (an NGO estimate, not a government statistic). A 2023 CSIS report estimated that Chinese giant-clam harvesting has damaged an estimated 16,353 acres of coral reef, and that reclamation has destroyed about 4,648 acres.
• Government support measures: BFAR's fuel subsidy (₱3,000 per registered fisher, requiring FishR/RSBSA registration), the "Layag WPS" program (covering coastal provinces in Ilocos, Central Luzon, and MIMAROPA, including Palawan), and the F/B Pagbabago program distributing FRP fishing boats (which delivered fuel assistance to over 18,500 people across 10 provinces in 2024). In March 2026, President Marcos ordered the mobilization of ₱10 billion to support farmers and fishers.
• 注 The "South China Sea issue" looks like a security matter, but in Palawan it is a livelihood matter. Puerto Princesa is a base for the PCG and the Philippine Navy's Western Command (WESCOM), and also serves as the starting point for refueling missions and press embeds.

8. Development Pressure's "Other Face" — Power and Infrastructure

• Palawan is connected to neither the Luzon nor the Visayas power grid — it is an off-grid, independent system. Its power comes mainly from diesel, subsidized by mainland consumers through the Universal Charge for Missionary Electrification (UCME).
• From January to May 2023, fuel-price spikes left NPC-SPUG unable to pay for fuel, triggering rotating blackouts in Palawan and elsewhere. In some areas, power was supplied for only 6–12 hours a day. In 2022, unpaid UCME arrears of about ₱442 million owed to PALECO (the Palawan Electric Cooperative) brought the province to the brink of a supply cutoff.
• The UCME rate rose from 15.61 centavos/kWh in 2022 to 27.63 centavos/kWh by 2026 (roughly 15% annual growth). 注(Corrected in the 2026-08-25 cross-check.) This article's "2026 = 27.63 centavos" figure does not match other references in the same cluster. | Category | Total amount | Rate | Source | |---|---|---|---| | 2026 (ERC-approved, currently in effect) | ₱30.773 billion | ₱0.2662/kWh = 26.62 centavos | Sector reference "Electricity and Power Rates," §10 | | 2027 (NPC's pending application to the ERC, filed April 2026) | ₱44.2 billion | ₱0.4405/kWh = 44.05 centavos (+65.5%) | BusinessWorld, April 1, 2026 (sector reference "Remote Islands and Frontiers," §0) | | This article | — | 27.63 centavos (2026) | Source unidentified |

The reported "+65.5%" matches 0.4405 ÷ 0.2662 = 1.655 exactly (0.4405 ÷ 0.2763 would instead give +59.4%). This makes it consistent to treat ₱0.2662/kWh as the applicable 2026 rate. This article's figure of 27.63 centavos likely comes from a separate series with a different base year or scope, so it is kept rather than deleted, but should not be cited on its own as "the 2026 rate." Note too that 44.05 centavos is an applied figure for 2027, not a 2026 rate. - Many resorts in El Nido, Port Barton, and southern Coron rely on their own generators, facing a double squeeze of fuel prices and adjustments to electricity rates. Within the province, this has fed a debate that "adopting renewable energy in off-grid areas isn't just an environmental measure — it's a survival strategy for the tourism industry" (ICSC, Palawan News).

9. Summary — Four Tensions

Explaining Palawan purely as "a beautiful-beach tourist destination" won't get you far with people on the ground. The starting point for understanding is that environmental law, mining, energy, and security all overlap on the same map here.

10. 注 Easy Things to Get Wrong (Summary)

1. Two figures for the province's land area coexist: "17,030 km²" and "14,650 km²," which differ depending on whether inland waters and jurisdictional waters are included.
2. Puerto Princesa City is the provincial capital but lies outside provincial jurisdiction (as a Highly Urbanized City). Some population statistics for the province exclude the city's population.
3. Tubbataha is accessible only about 10 weeks a year. "Adding it on to a Palawan trip" is physically impossible.
4. Information on El Nido's entrance fee is mixed — both ₱200 and ₱400 circulate. Always confirm on arrival.
5. Palawan has a large absolute amount of forest cover, yet also the country's largest tree-cover loss. Don't assume it is "protected."
6. The provincial mining moratorium does not apply to existing mining claims. "Mining has stopped in Palawan" is incorrect.
7. The Kalayaan Island Group is a single municipality of Palawan province. The "Spratlys" of international reporting and the administrative "Municipality of Kalayaan" refer to the same place.
8. Malampaya has long been described as "nearly depleted," but Phase 4 in 2026 extended its life by about 6 years. Speak to the current situation, not the old narrative.

日本語の詳細版: 分野「地理」「パラワンと海洋環境」（本サイト日本語版）。