www.blackturtledive.com · Dive School
Nearby Three Rocks / Pottery depth range, ordinary visibility, hard coral, and reef life support the shallow-pinnacle baseline.
Dive Spot Guide•
Jansom Bay
Sheltered Koh Tao bay with easy shore snorkeling and calm reef life.
Hangout SeshFreedivingScuba DivingSnorkelingShoreBeginner
Reef
Private west-side bay on Koh Tao with a shallow sandy entry, calm water, and reef life close to shore.
About Jansom Bay
Jansom Bay is a sheltered west-side bay on Koh Tao with a shallow sandy beach, easy shore access, and reef structure just offshore. It is best known for relaxed snorkeling and beginner-friendly diving in calm water, with the most interesting life on the reef edge and nearby pinnacles rather than in the sandy center.
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Research Estimate At Jansom Bay
Conservative baseline from public research. No community dives logged yet.
VisibilityVisibility: 8m
AccessSimple entry
CoralHealthy coral
Aquatic LifeGreat variety
FacilitiesBasic facilities
Crowd / PopularityFew visitors
CurrentNo current
SurgeFlat calm
Where Is Jansom Bay?
This spotNearby spots
Community sourced coordinates.
Jansom Bay Planning Details
Depth range, seasonality, and planning context.
Reported Depth
1m - 12m
Depth Note
The bay is shallow enough to swim and snorkel at low tide, while the offshore Three Rocks / Pottery area is reported around 3-12m and Three Rocks itself around 8-9m max.
Best Season
Year-round; especially useful when exposed east-side sites are rough.
Typical Conditions
Usually sheltered and calm, with shallow water that remains swim-friendly at low tide and light current along the bay front.
Safety & Access At Jansom Bay
Hazards, restrictions, and access requirements.
Key Hazards
Boat trafficSharp coral
Access Restrictions
Private property; non-guests usually pay a 200 baht entry fee, and snorkeling fins are not allowed.
Legal Notes
Follow posted resort access rules and private-beach restrictions.
Local Intel For Jansom Bay
Community notes to help plan your visit.
Scuba
Relaxed shore and reef diving with the best action on the outer reef edge and the nearby Three Rocks area.
Freedive
The shallow sheltered water can work for relaxed apnea practice near the beach, but the site is more naturally a snorkel and easy scuba spot.
Snorkel
The shallow bay is one of the easiest snorkel entries on Koh Tao, especially along the reef edge; snorkeling fins are not allowed.
Chill / Non-diver
Good for calm-water swim time, lingering on the beach, and a low-effort in-and-out session between dives.
Jansom Bay Dive Conditions Planner
Use the planner to scan this week, inspect today in local time, and understand how exposure shapes conditions at Jansom Bay.
Current Snapshot
No data
🌥️Variable
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Sunset
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Surface / Entry
Wind No data · Tide No data
Sea State
Swell No data · Period unavailable
Visibility Outlook
Rain chance No data
Wind
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Swell
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Exposure Profile at Jansom Bay
Directional shelter context for incoming swell.
Exposure Note
Hourly forecast data is not available yet.
Wildlife at Jansom Bay
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Jansom Bay
Community dive logs and visit reports for this site.
No Dive Logs Yet
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Dive Spot Log Averages At Jansom Bay
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility8m
Activity
No dive activity logged yet.
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Jansom Bay Guide - Frequently Asked Questions
Planning answers for access, conditions, timing, and site logistics.
Jansom Bay Guide - Sources and Updates
Last Updated
Research Sources
www.kohtaocompleteguide.com · Guide
Private-bay access, 200 baht entry, snorkeling suitability, no-fins rule, and the marine-life mix around Jansom Bay.
www.thai2siam.com · Tourism
10-minute walk from Mae Haad, coral close to shore, green turtles, reef fish, and private-bay access with a fee.
www.thailandgeographic.com · Guide
Calm and shallow conditions, year-round use, weekend crowding, deckchairs, moored dive boats, and the flipper ban.
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