Pufferfish contain tetrodotoxin, a substance that makes them foul tasting and often lethal to fish. To humans, tetrodotoxin is deadly, up to 1,200 times more poisonous than cyanide. There is enough toxin in one pufferfish to kill 30 adult humans, and there is no known antidote.
Liveaboard Diving in the Andaman Islands
Passage Island : Fish Rock
- Site Layout:
- Rocky promontory
- Diving depth:
- Surface to 30m+
- Currents:
- Can be strong
- Visibility:
- Up to 40m(!)
- Surface:
- Can get choppy, sometimes with surface currents
- Site access:
- Normally dinghy
This is an aptly named site and is an extremely colourful dive, with literally millions of fish!! The site itself consists of rocky slopes, boulders and small drop offs, that are adorned with large Fan Corals and numerous Basket Sponges. Below around 22m the rocks are covered in small bushy soft corals in varying colours. Grey and White Tip Reef sharks are sometimes in attendance, as are nurse sharks.
Select other Andaman Island Dive Sites you can see on your liveaboard trip.
- Barren Island
- Campbell Shoal
- Invisible Bank : Flat Rock
- Lighthouse Point
- Minerva Ledge
- Narcondam Islands
- Neil's Pride
- North Button Island
- North Cinque Island
- South Button Island
For general tourist information and history on the Andaman Islands see the Andaman Islands Website.
Return to Liveaboard Diving in the Andaman Islands.