Thailand – Australia – United Kingdom

Wreck Diving in Similan Islands

The Sea Chart 1 Wreck and Premchai Wreck prove perfect training grounds for technical diving.

Khao Lak, Thailand

Big Blue Tech conducted 2 days of technical wreck diving on the Mv Sea Chart 1 wreck and Premchai Wreck off the coast of Khao Lak in 45m of water.

The days of diving was for Ash to further train Francesco Recher in the skills of mixed gas and extended range diving while managing a wreck dive.

Trimix and nitrox was used to remove the aspects of narcosis for the more challenging parts of the dive and this also contributed to the required training for Francesco to complete his Trimix course coming later.

The Sea Chart Wreck is a 80m long cargo ship which sank in rough weather in 2009. The Premchai wreck is a tin dredger which sank in the Tsunami in 2004.

Both wrecks are home to unqiue and extensive marine life with plenty of areas of penetration for wreck specific skills.

This was also a great chance for James and Helen to get out some sidemount ocean diving which is perfect for getting in an out of makeshift dive boats in remote areas.

These dives would be the last of the local diving before heading out to the Similan Islands on a liveaboard tomorrow.

Special thanks as always to IQ Dive Shop in Khao Lak for their support with nitrox and oxygen fills at the pier and their help with logistics

in getting to the site. This is the third year we have used IQ for this and every time they have excelled in our view.

More pictures can be found on our facebook page at –


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