You can just go right across the beach my the pier and see all of them there, talk to the people running the tours, and see what appeals to you. Several boats go out multiple times per day. Most seem to do a little mansion tour (point out the famous person that used to own the house and probably now gave it to that Scientology church -- seems they own most of the mansions) and the dolphins which are plentiful there follow along for the majority of the trip. I don't even remember which one we went out on, but it was relatively inexpensive and fun. // You can see what size boat appeals to you. Some people with kids might like the pirate themed boat. Others might want to avoid that etc. If I remember correctly they are all priced pretty much the same and see to run for a similar duration of time.