Batangas, Luzon, Philippines
Anilao
Stretch of coastline three hours south of Manila with a dense concentration of macro and muck sites in a small area, plus one of the more established blackwater diving operations in Asia.
- Macro
- Blackwater
- Muck
Best season
Best Apr–May
Minimum cert
Open Water
Water
24–30°C
Current
mild
Season
When this place works
Season runs roughly October to May, with November and May singled out as the best months by both sources. Jun-Sep is the southwest monsoon and typhoon window: resorts stay open and diving continues on calm days, but sea state and rain…
Why dive here
What this place is known for
- 01macro
Nudibranch and critter density
Widely described as the nudibranch capital of the world, with roughly 100 species realistically achievable in a single week. The claim is repeated across sources without a survey behind it, so treat the superlative as marketing and the density as real.
02blackwaterBlackwater diving
Surprise relative to the headline: Anilao is booked almost entirely as a macro-photography destination and its blackwater diving is under-known outside that circle. Larval-stage fish, cephalopods and gelatinous animals, a proportion of which are undescribed.…
- 03muck
Muck sites
Environment, distinct from the macro subjects. Secret Bay and similar sand and rubble sites, alongside genuine coral reef at Twin Rocks and Beatrice. Anilao mixes both within a short boat ride, which is unusual.
Marine life
Twelve-month species timelines
Multiple species. Sources do not resolve to species level, so this entry is deliberately genus-level rather than falsely precise.
Genus-level; multiple species reported. Corroborated across both sources.
Conditions
What the water is like
Water temp
24–30°C
15°C — 32°C
Visibility
5–25 m
0 m — 40 m
Current
mild
mild — strong
Thermoclines
Not typical
unlikely
Minimum certification — Open Water
Muck sites are shallow and current-free and suit any certification level. The wide-angle points (Beatrice, Mainit) carry real current and are a step up. Blackwater is the exception: open water at night with no bottom reference, run on a…
Entries — boat, shore
Logistics
How people dive it
3-10 days
scuba
Dive resorts along the coast running small bangka boats, typically four divers maximum, with very short transits. Three to four dives a day…
1-2 days
scuba
Roughly three hours by road from Manila, which makes Anilao the standard weekend destination for Manila-based divers. Workable, but…
Operators
Who to book with
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Sources & verification
Check the evidence.
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