Khao Lak is on the Andaman coast of Thailand around 100km north of Phuket and to most is widely considered to be the gateway to the Similans. Dive operators in Khao Lak offer speedboat trips and can get you to the Similans in about an hour and twenty minutes. Diving from here is a little expensive here but it offers the convenience of getting to and from all the premier dive sites. An other alternative is a liveaboard trip.

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Khao Lak itself is a pleasent place for a relaxing holiday with several good beaches, plenty of resorts and a number of fine restaurants.