Recommend not getting there more than 20 mins before the boat leaves as you still be sitting in the sun waiting. To be honest, this isn't really a tour, more of a cruise around and have a few drinks (recommend getting the deals ). you will see a few dolphins but dont expect to see any amazing celebrity houses, the tour guide will point out a few interesting houses or facts about the area and then the rest of the time itll just be music playing and enjoying the sun. I'd recommend not sitting on the top deck, got way too hot for me. the first floor by the captain is the best as there is shade and seats. We enjoyed our time but only because I read previous reviews and knew what this was, if you want a real guided tour definitely do not do this one.