Part of the regional summaries: Philippines - Palawan and Philippines

Green Lagoon, one of the karst lagoons on Coron Island's south coast, was a snorkel stop on a 2017 island-hopping day, with boulder and branching corals in the shallows. The record is based on just a handful of photos.
Ang Green Lagoon, isa sa mga karst na lagoon sa timog na baybayin ng Coron Island, ay isang hinto para sa snorkel sa isang araw ng island hopping noong 2017, na may mga bunton (boulder) at sumasangang koral sa mababaw na bahagi. Iilang larawan lamang ang pinagbatayan ng talaang ito.
Salin ng buod na ito gamit ang AI; ang Ingles ang opisyal na bersyon.
Two independent survey stations shown with the program’s logo — click one to see how far it is from this site.
One other CRD dive site with its own page within 5 km shown in orange — click a marker to open its page.
Green Lagoon, Coron Island, Palawan — a snorkel stop on the island-hopping day of 28 January 2017, in the karst lagoons on Coron's south coast.
No bleaching, disease, crown-of-thorns starfish, or other stressor is recorded for this snorkel stop (28 January 2017): Anderson's Palawan trip notes list Green Lagoon only as a stop on the Coron island-hopping day, and the dive log has no entry for it.
We found no other surveys at this site as of 2026. Within 5 km, two Reef Check stations recorded station-year means of 28–73% hard coral cover between 2013 and 2015; the nearest, Reef Check at CYC East Reef, 3.30 km away, read 34–73% between 2013 and 2015.
Position is from the photographs' own GPS (4 frames), not an estimate.
Within 5 km, 2 independent survey stations recorded hard coral cover in 6 surveys between 2013 and 2015. Of the 2 stations surveyed in more than one year, 2 declined (by 38–39 points) between their first and latest surveys. Two stations share the longest span (2013–2015); one, CYC East Reef (Reef Check, 3.30 km away), went from 73% (best patch) in 2013 to 34% in 2015. The most recent nearby survey is from 2015, so these values predate recent heat stress.
Collected by other programs using different methods (Reef Check uses point-intercept transects), so these are context for the figures above, not a like-for-like comparison. Where a station was surveyed more than once, the cell shows either the range of its values or, as a single value, the mean of surveys made in one year. Station names are not dive-site names. Values above 70% are marked “best patch”: surveys often target the densest coral on a reef, so these may overstate the site as a whole.
| Agency | Site / location | Date | Hard coral cover (%) | Distance |
|---|---|---|---|---|
| Reef Check | CYC East Reef | 2013–2015 | 34–73% (3 surveys) best patch | 3.30 km |
| Reef Check | CYC West Reef | 2013–2015 | 28–66% (3 surveys) | 3.59 km |
All images from Coral Reef Diagnostics. Data are from Coral Reef Diagnostics and the organizations named in the data sources above.
© Coral Reef Diagnostics.