Koh Bida Islands

  • must see
From Shore, From Boat
Diver Level
Average: 5 m
Maximum: 35 m
Average: 15 m
Maximum: 25 m

Koh Bida Islands consists of two small islands (Koh Bida Nok and Koh Bida Nai) located close to the southern tip of Koh Phi Phi islands. These two beautiful islands provide a great chance of seeing turtles and sharks. Bida Nok, the larger of the two islands, offers vast range of corals and marine life, fantastic walls and reefs descending down to 28m/90ft deep. The south entry site is good for beginners, while the north entry - is more suitable for advanced divers. Unlike Koh Bida Nok, Koh Bida Nai has more boulders and fallen rocks make some interesting swimthoughs, as well as walls and caves. Also there is coral outcrop called Fantasy Reef, where divers cam explore staghorn garden and see leopard or black tip sharks.

When to go

Diving is better from 15th of October until the 15th of May. The average air temperature: 25C/77F to 33C/91F. The water temperature: 27C/81F to 30C/85F.

What to see

Blacktip Reef Sharks and Leopard sharks and many other big predator fish can be easily seen in these sites, as well as large shoals of glassfish, octopus, turtles, nudibranchs, seahorse and others.


  • Koh Lanta Anti Gravity Divers - Koh Lanta

    5 Days Diving Package

    5 days diving package. This product is for certified divers only
  • Koh Lanta Anti Gravity Divers - Koh Lanta

    10 Days Dives Package

    10 days diving package. This product is for certified divers only
  • Phuket No Gravity Dive Center

    Boat Trip to Phi Phi Islands

    Boat trip to Phi Phi Islands. This trip includes two dives at Phi Phi Islands and one dive on the way back to Phuket at Shark Point, Anemone Reef or Koh Doc Mai. The Phi Phi Islands lay about 45km East of Phuket. It takes about two and half hours by the dive boat to get to Phi Phi Islands. The exotic scenery with a huge variety of reef life makes it one of the best scuba diving destination in Phuket. There are several dive sites around Phi Phi offering amazing fun dives for divers of all certification levels. The best sites are Koh Bida Nok, Koh Bida Nai and along the wall of Phi Phi Ley Island. Vertical walls covered with soft corals, sloping hard coral reefs, caverns and swim-throughs highlight the underwater landscape. About the marine life: tiger tail seahorse, ghost pipe fish, frog fish, shrimps, nudibranches in the cracks of the limestone. Massive schools of fish (barracudas, tunas, jacks, snappers) in the blue. It is easy to find black tip reef sharks, leopard sharks, turtles on any dive site around. Occasionally whale sharks hang around the islands, too!
  • Koh Lanta OK Club Diving Center

    3 Days Diving Package (2 Local Sites)

    Daily diving. This product is for certified divers only

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