The boats are limited to 6 people. We had 7 and they put us in 2 boats at no extra charge. Very good guides, great trip and lots of fun. The Kayak trip is also very good as we got close to dolphins there as well.
We went with Scott and barely saw any dolphins. I definitely did not think it was worth the money that we paid. Others have gone and seen tons of dolpins. I would not do it again.