Chumpon Pinnacle is a dive site located 11km north-east from Koh Tao Island. Covered in a colorful array of hard and soft coral and large anemones, this pinnacle in standing out right in the middle of nowhere: like a magnet, it attracts and supports large schools of surgeonfish, snappers, damsels, clownfish, boxfish... but also barracudas, spanish mackerels, big potato groupers and schools of batfish. Occasionally, manta rays, leopard sharks or even whale-sharks swim by (february to may, and september).
There was a time when bull sharks could be seen in the distance when the visibility allowed it... but overfishing has taken its toll and they're getting rarer.
The pinnacle starts at 12m and shoots down to 35m. The diving here is rich and accessible year round but the marine life is really thriving between february and september.