Reefwander
Dive boat approaching Mango Bay's granite coastline and clear turquoise water at Koh Tao

Koh Tao · Thailand · Reef · Artificial reef

Tanote Bay

Shore-to-boat bay reef with a small wreck at 18 m

Area photo: ScorpioZZ · CC BY 3.0

An east-coast bay where the reef starts at the shoreline and runs across the whole bay, so it is dived from the beach as well as from boats. The edge of the reef sits between 8 and 15 m, and the bay also holds small caverns, several artificial reef structures and the Katamaran Wreck at 18 m. Turtles and stingrays are regular over the coral.

Where it is and how deep

Depth profile of Tanote Bay: typical dive 8–15 m (26–50 ft), deepest point 18 m (60 ft) 18 m · Open Water30 m · Advanced40 m · Recreational limit8 m15 m18 m maxtypical dive
Depths on a shared scale to 40 m (130 ft); dashed lines mark common certification limits.

10.0841° N, 99.8489° EPublished position for this site.

The dive

The reef here starts at the waterline, which changes how the dive is planned: instead of a descent to find the structure, you swim out over coral that is already under you and let the bottom fall away. The edge of the reef, where the coral gives out, sits between 8 and 15 m, and that band is where most of the dive is spent. Because the reef reaches across the whole bay there is no single route, and the shallow ground on the way back in makes a safety stop almost automatic.

The bay carries more than coral. There are small caverns in the rock, several artificial reef constructions, and the Katamaran Wreck sitting at 18 m, which is the deepest point most groups take in. On the reef itself there is a large field of soft coral alongside a good spread of hard corals and anemones, with sea turtles and stingrays both seen regularly, so a slow first half over the coral and a look at the structures on the way back covers the site well.

Marine life and season

  • Sea turtles
  • Stingrays
Month-by-month season rating for Tanote Bay
JanFebMarAprMayJunJulAugSepOctNovDec
GoodGoodPrimePrimePrimeGoodGoodGoodGoodFairFairGood

Season follows Koh Tao: No official closure; whale shark sightings peak March-May and September-October, while October-November bring more rain and surface chop.

Questions divers ask

Can you shore dive Tanote Bay?+

Yes. The reef starts right at the shore and reaches over the whole bay, with the reef edge at 8 to 15 m, so the site is dived from the beach as well as from boats.

Sources

  1. Tanote Bay - Scubago — Scubago

More dive sites in Koh Tao

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Upright navy wreck, superstructure at 18 m, keel at 30 m

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Sunken jeep and scrap at 10 to 12 m, colonised by reef fish

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Sheltered fringing reef, sandy bottom at 12 m

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Pinnacle

Rock islet dived top to bottom, surface down to 25 m

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