Bida Nai

The inner Bida pinnacle, a few hundred metres north of Bida Nok and just south of Phi Phi Leh. Like its twin it has no beach and is visited for diving and snorkelling along its walls and boulders, with reef sharks, barracuda and large schools of fish. Boats from Tonsai take 15 to 30 minutes.

Bida Nai is the northern of the two Bida pinnacles south of Phi Phi Leh, a dive site about 30 minutes by boat from Tonsai.

Not that we know of. This page on kohphiphi-live.com shows what Bida Nai is and where to find it.