They will but it is long day tour as the main departure pier for the Surins is Kuraburi about 75 minutes north of Khao Lak. So from Patong it will take about 3 hours 75 minutes each way. Speedboats leave the pier about 8.30 am returning back at about 5pm. The crossing is about 70 minutes.
If you can find any offering departures from Ban Nam Khem that will shorten the transfer from Patong by about 45 minutes.
Why not stop over in Khao Lak for a few days (or more) and use that as a base. You will find it completely different from Patong.
I'm assuming that you will be looking to go to the Surins between 1st November and 30th April as they are closed outside that period.
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