Ko Kra (island) also called: Koh Krah

Ko Kra is a uninhabited island in the region of Nakhon Si Thammarat, and is remote from the mainland.

The islands' bays and lagoons have long provided storm shelter for fishing boats during the monsoon.The reefs attract divers and snorkellers from around the world and help sustain commercial fisheries that mainly target Yellow Queenfish, red snapper and Cobia. 

The 374 hectare Ko Kra Archipelago in Nakhon Si Thammarat is a wetland of international importance on the Ramsar List.

Thailand now has 13 wetlands of international importance, with a surface area of 392,822 hectares, since the convention came into force here on 13 September 1998.

The site is monitored by the Royal Thai Navy and a national fisheries law prohibits fishing within 3km of the islands, but illegal turtle egg harvesting and fishing, including dynamite fishing and poisoning, threaten the site, according to Ramsar Convention's secretariat.

Coral reefs worldwide are being harmed through anthropogenic activities. Some coral reefs in Thailand remain well-preserved, including the shallow coral reefs along Kra island, Nakhon Si Thammarat province. Interestingly, the microbial community in this environment remains unknown. The present study identified biodiversity of prokaryotes and eukaryotes of 0.22-30 mum in sizes and their metabolic potentials in this coral reef surface in summer and winter seasons, using 16S and 18S rRNA genes pyrosequencing.

http://www.bioportfolio.com/search/coral-thailand-diversity.html 

Of travel. Nakhon Si Thammarat is the closest point. By Khanom Golden Beach. From Khanom to Koh Kra is 77 NM = 145 kms,  mostly of Live Aboard cruising speed around 8-10 NM, it takes 9 to 10 Hrs. http://islandsofthai.blogspot.com/2013/09/islands-thailand-kra-island-koh-kra.html.

You can contact http://www.choksulee.com/Information.html or Golden Beach Hotel http://www.khanomgoldenbeach.com

Choksulee (pronounced as chok-su-lee) is a professionally managed pioneer live-aboard boat for Koh Kra.