I believe there are many Trilogy excursions. The trip we took was to Lanai where you dock and visit the island. No other boats are allowed to do this. On the trip over we were surrounded by dolphins. That was worth the money right there. Once there you have the option to take a van tour with auntie Mo (who is amazing by the way) or go straight to the beach for snorkeling. This was our second time on this catamaran so took the van tour which we opted out of before. It was interesting, super fun and beautiful. After that we hit the beach and did some snorkeling. After that, a huge barbecue and then an exciting fun filled trip home. The boat was rockin! It was so fun and I'm so glad I took Dramamine. Toward the end of the trip they hoist the sails and it is really beautiful. The crew was EXCEPTIONAL! Captain Brian was beyond nice and Jordan's ukelele playing and singing was a special treat. What a day! Kind of pricier than other tours but you are fed all day long and your gone all day! The day went by fast and we had a blast. I highly recommend this trip.