Tourists taking a selfie in the water at Similan Island no 4, Ko Miang (เกาะเมียง) in Phang Na Province, Thailand

Tourists taking a selfie in the water at Similan Island no 4, Ko Miang (เกาะเมียง) in  Phang Na Province, Thailand in May 2016

People swimming back to the boat to Morakot cave on Ko Muk Island in Trang district, Thailand

People swimming back to the boat to Morakot cave on Ko Muk Island in Trang district, Thailand in May 2016

People swimming from the boat to Morakot cave on Ko Muk Island in Trang district, Thailand

People swimming from the boat to Morakot cave on Ko Muk Island in Trang district, Thailand in May 2016

Pemika and her mom on Egg Island in Trang Province, Thailand

Pemika and her mom on Egg Island in Trang Province, Thailand in May 2016

People on a speedboat leaving Satun Province, Thailand

People on  a speedboat leaving Satun Province, Thailand in May 2016

A jet ski in Jervis Bay, NSW

A jet ski in Jervis Bay, NSW in September 2013

Thais enjoying the ocean at Koh Si Chang, Thailand

Thais enjoying the ocean at Koh Si Chang, Thailand in February 2014

Protect the life buoy!

Warning not to damage or steal the life buoay at Stanley, Hong Kong in September 2012

Swimming with life jackets

Fon and her mom swimming at an islet near Koh Poda, Ao Nang in February 2012

Jumping off a boat

Woman jumping off a boat at Koh Poda, Ao Nang, southern Thailand in February 2012

Boarding a boat

Woman boarding a boat at Railay Beach, Ao Nang, Krabi District, Thailand in February 2012. Beautiful hair

Emergency stuff

An emergency telephone and life saving buoy at Lake Ginninderra, Canberra in August 2009

Beach hats

Tourists and a crew member in the water by a beach on an island in the Krabi district in southern Thailand in March 2010

Water sports

A couple about to board a jet ski at Mactan Island, Philippines, in March 2009