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
Invisible Bank : Flat Rock
- Site Layout:
- Submerged rocky promontory
- Diving depth:
- Over 30m
- Currents:
- Can be strong
- Visibility:
- Up to 40m not unusual+
- Surface:
- Very exposed ; choppy if the wind is blowing
- Site access:
- Normally MV Philkade
The topography on Flat Rock is fairly dramatic, with scattered rocks over a sandy bottom, with the concentration of fish absolutely incredible. The pelagics are especially noteworthy. It is difficult to know where to start but you can expect to see schools of Black Unicorn Fish, Surgeon Fish, Mackerel, Tuna, and Trevally. Grey and White Tip Reef Sharks are likely to be in evidence, as are Nurse Sharks, Dog Tooth Tuna, Great Barracuda, and Giant and Blue Fin Trevally. A fabulous dive spot, with plenty of big fish.
Select other Andaman Island Dive Sites you can see on your liveaboard trip.
- Barren Island
- Campbell Shoal
- Lighthouse Point
- Minerva Ledge
- Narcondam Island
- Neil's Pride
- North Button Island
- North Cinque Island
- Passage Island : Fish Rock
- 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.