divehappy.com · Guide
Short seasonal access window and recurring manta and whale shark sightings.
Dive Spot Guide•
Ko Losin
Liveaboard-only Gulf pinnacle with coral and pelagics.
5/5
2 dives 1 diverLocal operator required
Liveaboard charter required; no day-boat or shore access is practical here.
Seasonal liveaboard access and current make Ko Losin best for experienced scuba divers who are comfortable with open-water logistics.
About Ko Losin
Ko Losin is a remote liveaboard-only pinnacle in the deep Gulf of Thailand with hard-coral slopes, coral bommies, and a steep offshore drop-off. It suits confident scuba divers who want an exposed open-water trip shaped by weather windows, current, and seasonal pelagic life. When conditions line up, large rays, sharks, and schooling fish give the site its reputation.
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Research + Early Community Signal At Ko Losin
Conservative research baseline blended with 2 dives by 1 diver.
VisibilityVisibility: 20m
AccessDifficult access
CoralPristine, vibrant coral
Aquatic LifeExceptional variety
FacilitiesNo facilities
Crowd / PopularityVery quiet
CurrentModerate current
Where Is Ko Losin?
This spotNearby spotsExplore nearby spots on the map
Community sourced coordinates.
Ko Losin Planning Details
Depth range, seasonality, and planning context.
Reported Depth
18m - 35m
Depth Note
Shallow reef crest over a steeper drop-off on a remote offshore pinnacle.
Best Season
Late spring through early autumn, with the main window opening when weather settles.
Typical Conditions
Offshore, current-prone, and best when the sea is settled.
Safety & Access At Ko Losin
Hazards, restrictions, and access requirements.
Key Hazards
Strong currentWaves
Safety Notes
This is a very remote offshore site; plan conservatively and ensure appropriate support and safety equipment for open-ocean conditions.
Local Intel For Ko Losin
Community notes to help plan your visit.
Scuba Diving
Best for experienced scuba divers who are comfortable with current, open-water logistics, and seasonal access.
Snorkeling
Whale sharks may come close to anchored boats and can be approached while snorkeling.
Wildlife at Ko Losin
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Ko Losin
2 community dive logs and visit reports for this site.
Dive Spot Log Averages At Ko Losin
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility20m
Activity
Total Logs2
Unique Divers1