It is a long daytrip to The Similans:- It is a 2 hour drive from Phuket to Tap Lamu and a further 2 hour speedboat trip to the boat which is based at The Similans. Most of the dive centres on Phuket offer these daytrips and the cost is 5 600 baht per diver (2 dives) not inc equipment rental and 3 600 baht per non diver. Lunch and refreshments included.
The Similan Park fees are also not included and the costs are 400 baht per person entry fee and 200 baht per day per person.