Romblon
Philippines · Visayas
Romblon sits in the Sibuyan Sea, one of the Philippines' best-kept macro diving secrets where thresher sharks, frogfish, and pygmy seahorses share the same pristine waters. Minimal tourist infrastructure means reefs remain in exceptional condition, drawing specialist underwater photographers from around the world.
How this reef is doing
ⓘ How we measure thisReef state
Live science signals for this reef are still being gathered.
Coral cover
Fish life
Heat
Fishing
Open to fishing, and the water is fairly quiet.
Sources · Global Fishing Watch and reef gravity
What you will see
19 species across the dive sites here
Phyllodesmium koehleri
Seen 2 months ago
at Blue Hole Romblon
Denise's Pygmy Seahorse
Seen 2 months ago
at Cobrador Island
Least concern
Tiger Butterfly Sea Slug
Seen 2 months ago
at Cobrador Island
Melibe colemani
Seen 2 months ago
at Cobrador Island
Weedy Pygmy Seahorse
Seen 2 months ago
at Cobrador Island
Least concern
Bargibant's Pygmy Seahorse
Seen 2 months ago
at Blue Hole Romblon
Least concern
Cyerce blackburnae
Seen 2 months ago
at Cobrador Island
Ornate Ghost Pipefish
Seen 3 months ago
at Looc Bay
Least concern
Anna'S Chromodoris
Seen 4 months ago
at Cobrador Island
Flamboyant Cuttlefish
Seen 4 months ago
at Looc Bay
Painted Frogfish
Seen 4 months ago
at Looc Bay
Least concern
Hairy Frogfish
Seen Apr 2025
at Blue Hole Romblon
Least concern
Bigeye Trevally
Seen year round
at Tablas Strait Drift
Least concern
Chromodoris Nudibranch (various)
Seen year round
at Looc Bay
Orbicular Batfish
Seen year round
at Blue Hole Romblon
Least concern
Pelagic Thresher Shark
Seen year round
at Cobrador Island
Endangered
Reef Manta Ray
Seasonal visitor
at Tablas Strait Drift
Vulnerable
Scalloped Hammerhead Shark
Seasonal visitor
at Tablas Strait Drift
Critically endangered
Yellowfin Tuna
Seasonal visitor
at Cobrador Island
Least concern
Dive sites
Cobrador Island
pelagic thresher shark · denise's pygmy seahorse · yellowfin tuna · melibe colemani
Blue Hole Romblon
bargibant's pygmy seahorse · hairy frogfish · orbicular batfish · melibe colemani
Looc Bay
flamboyant cuttlefish · painted frogfish · ornate ghost pipefish · chromodoris nudibranch (various)
Tablas Strait Drift
scalloped hammerhead shark · reef manta ray · bigeye trevally · melibe colemani