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Hotels, dive operators, gear, and how to get here are on the Apo Reef location page.
Overview
Anilao, Batangas, is renowned for its exceptional marine biodiversity, offering vibrant coral reefs and world-class muck diving sites. Divers can encounter an incredible array of critters and unique macro subjects, making it a prime destination for underwater photography.
What you'll see
3 species curated- year-roundNudibranchs
- year-roundFrogfish
- seasonalFlamboyant CuttlefishPeak: Mar · Apr · May · Jun
Sightings evidence
1 record on file- high confidenceNudibranchs
- Last confirmed
- May 2026
- Recent records
- 130 within 10 km
Sources & methodology
How we summarise this
We aggregate confirmed occurrence records from GBIF and OBIS within a fixed radius of each dive site. Occurrence records confirm presence and reveal seasonality clustering, but they DO NOT measure per-dive probability — there is no eligible-effort denominator. We deliberately do not publish a numeric '% chance of sighting' from this data.
Sources
- Global Biodiversity Information Facility — GBIF Secretariat
- Ocean Biodiversity Information System — IOC-UNESCO
- iNaturalist — California Academy of Sciences & National Geographic Society
- OBIS-SEAMAP — Duke University Marine Geospatial Ecology Lab / OBIS
- IUCN Red List of Threatened Species — International Union for Conservation of Nature
- WoRMS — World Register of Marine Species — Flanders Marine Institute (VLIZ)
- FishBase — FishBase Consortium
- Atlas of Living Australia — CSIRO / GBIF Australia
- REEF Volunteer Fish Survey — Reef Environmental Education Foundation
Conditions
| Month | Water | Visibility | Current |
|---|---|---|---|
| Jan | 26–29 °C | 10–20 m | moderate |
| Feb | 26–29 °C | 10–20 m | moderate |
| Mar | 26–29 °C | 10–20 m | moderate |
| Apr | 26–29 °C | 10–20 m | moderate |
| May | 26–29 °C | 10–20 m | moderate |
| Jun | 26–29 °C | 10–20 m | moderate |
| Jul | 26–29 °C | 10–20 m | moderate |
| Aug | 26–29 °C | 10–20 m | moderate |
| Sep | 26–29 °C | 10–20 m | moderate |
| Oct | 26–29 °C | 10–20 m | moderate |
| Nov | 26–29 °C | 10–20 m | moderate |
| Dec | 26–29 °C | 10–20 m | moderate |
Season calendar
Peak season highlighted · current month outlined
Next step
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