Operator guide to Koh Tao seasons, visibility, and currents.
Shallow Koh Tao training reef for first dives.
Shallow Koh Tao training reef for first dives.
A local dive center is the normal way to use the training reef and get the right coaching for a first dive.
Rainbow Reef is a shallow training reef in the southern part of Sairee Beach, Koh Tao. It is the kind of calm, easy site that works well for a first scuba dive or a relaxed snorkel session, with reef fish close to the beach and an easy-going training profile. It is a useful place to build confidence before moving on to Koh Tao's deeper walls and pinnacles.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Reported Depth
Up to 6m
Depth Note
Described as a shallow training area up to 6 m.
Best Season
All year round
Typical Conditions
Calm and beginner-friendly, with mild currents for most of the year and generally clear water.
Hazards, restrictions, and access requirements.
Safety Notes
Often used for first-time scuba training; dive with a local center.
Access Restrictions
Use a local dive center.
Community notes to help plan your visit.
Scuba Diving
Shallow training area suited to first-time scuba dives, reaching about 6 m.
Snorkeling
The shallow reef is suitable for snorkelling in calm conditions.
Species commonly reported at this site, with direct links into their wildlife guides.
Community dive logs and visit reports for this site.
Average conditions based on logged dives & visits.
Planning answers for access, conditions, timing, and site logistics.
Last Updated
Research Sources
Operator guide to Koh Tao seasons, visibility, and currents.
Know this site? Improve Spot Details.

Shallow Koh Tao boat dive near Mae Haad with macro life and night-diving appeal.

Sheltered Koh Tao bay with easy shore snorkeling and calm reef life.

Shallow Mae Haad Bay pinnacles with easy pier access.


Koh Tao's signature wreck dive with sheltering fish and a guide-led route.

Deep Koh Tao wreck with full penetration and daily boat access.