Dennis Bakhuis

Dive site · sea · Phi Phi, Koh Haa and the southern Andaman pinnacles

🇹🇭 Koh Bida Nok

Phi Phi, Krabi, Thailand

The outer of the two limestone islets south of Phi Phi Leh, with a wall down to twenty-five metres and leopard sharks asleep on the sand at the bottom of it.

Dives here
1
Deepest
22.9 m
Water
salt
First · last
2013

Revision 1 · changed 10 Oct 2026

History
  1. r1 10 Oct 2026 Imported from the personal log · Dennis Bakhuis

Site data © divelog-sites contributors (ODbL), descriptions and maps CC BY-SA 4.0 · 53edcaf

1 map

Koh Bida NokKoh Bida NaiWall↓20 mCave↓20 mVertical swim-through↓12 mCoral head↓16 mCoral head↓18 mCoral head↓20 mCoral head↓20 mSouth point↓5 mSheltered bay, hard coral↓5 mFinger Reef↓14 mCoral head↓12 mReef edge↓15 mSand, resting leopard sharks↓22 mShallows, blacktip reef sharks↓5 mN50 m
  • Point of interest
  • Marker
  • Shoreline
  • Depth contour
  • Wall / drop-off
  • Coral / reef
  • Depth
Site map · 6 objects · max 22 m

Koh Bida Nok, the outer of the two Bida limestone islets 2 km south of Phi Phi Leh; coastlines of Bida Nok and Bida Nai from OpenStreetMap. Cave, swim-through, coral heads and depths; the sheltered bay, Finger Reef and the leopard-shark sand from Phuket Dive Guide. The wall runs from the waterline to sand at 20-25 m; the usual dive circles the island. Positions are approximate.

Map © divelog-sites contributors, CC BY-SA 4.0 · 53edcaf

Koh Bida Nok — outer Bida — is the larger and further out of two limestone pinnacle islands south of Phi Phi Leh. The rock goes straight down from the waterline, and the dive is a circuit of the island along a wall that bottoms out on sand at about 20–25 m.

The sand is the point. Leopard sharks (Stegostoma tigrinum) rest on it during the day, quite still, and Bida Nok is the most reliable place in Thailand to find them. Blacktip reef sharks work the shallows on the eastern side.

Dived 27 November 2013 to 22.9 m.

Dived here with

Kim

Nearby sites

1 dive at Koh Bida Nok

  1. 27 Nov 2013 with Kim boat date27 Nov 2013 depth22.9 m time53 min water—

Sources

  • First-hand observation (Dennis Bakhuis)