Scuba diving in Koh Bida Nai

  • must see
From Boat
Diver level
Average: 10 m
Maximum: 25 m
Slight, but there is a possibility of strong currents.
Average: 10 m
Maximum: 30 m
Koh Bida Nai is a small island, located 2km south of Koh Phi Phi Ley. This site features walls, caves, boulders and fallen rocks that create some interesting swimthroughs hidden behind large shoals of glassfish. Divers can choose to explore Fantasy reef, located on the south-east side of the island (18-27m/59-88ft deep) or visit another shallow sloping reef on the east side, ideal for novice divers (depth 12m/39ft). Good buoyancy control is important as bearded lionfish are lurking on the bottom.

When to go

The best time to dive is from November to May, though diving is possible all year round. The air temperature ranges from 25C/77F to 32C/90F and water temperature is about 29C/84F all year round.

What to see

Some areas on the west side of the island and on the north and north-east side feature lots of small reef fish, including many nudibranchs, seahorses, ghost pipefish, shrimp and other species. Various schools of large predator fish, like blacktip reef sharks and leopard sharks, barracudas and trevallies can be seen hunting near the reef wall. Varying sizes and species of colorful parrotfish and wrasse, along with large shoals of moorish Idols are expected to be seen to be at all depths. Also divers can explore many gorgonian sea fans, whip corals and colorful soft corals.

Reachable from

Krabi, Koh Phi Phi Don

Liveaboards with trips to Koh Bida Nai

Dive center`s Special Offers

  • 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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