Dive-site story
Set off the northeastern corner of Koh Tao below an old navigation tower on the cliff above, Lighthouse Bay offers a sheltered haven with shallow coral gardens and scattered granite formations. Divers follow massive submerged boulders that taper into sandy flats, navigating fields of staghorn coral, massive brain corals, and sea anemone colonies. The bay serves as a dependable training ground and a relaxed site for easy navigation drills.
Extensive colonies of sea anemones housing family groups of saddleback anemonefish
Massive granite boulders providing swim-throughs and shelter for juvenile reef fishes
Sheltered bay topography that keeps sea conditions calm throughout much of the year
Location
Use the map to plan with your operator and confirm the exact entry point on the day.
Seasonality
Calmest surface conditions and optimal clarity occur between spring and late summer, before the northeast monsoon brings rougher water late in the year.
Marine life
| Species | Likelihood | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Saddleback AnemonefishAmphiprion polymnus | Common | ||||||||||||
| Yellowtail BarracudaSphyraena flavicauda | Common | ||||||||||||
| Bluespotted Ribbontail RayTaeniura lymma | Common | ||||||||||||
| Titan TriggerfishBalistoides viridescens | Common | ||||||||||||
| Chevron ButterflyfishChaetodon trifascialis | Common |
Marine forecast
