Wendy - We had 25 people in our party. We debated doing the private Katt Cruise but then didn't want to spend the $$. HOWEVER, we had several of our guests express an interested in the Beaches Snorkeling Boat trip (which is free for guests), however, they could not accomodate our whole party on one of their regular daily trips -- they offered to privately charter one for us in the bigger boat "after hours". It was AWESOME! I think they charged like $25 a person. It was just us and our 25 guests and they took us out to the reef and we snorkeled for 1 hour (they provided bottled water, but no other refreshments) and then they returned us to Beaches. I believe we went at like 4:30 or 5pm (I forget exactly) and saw TONS of beautiful fish. They don't advertise it, but if you ask at the Snorkeling Office, they may be willing to do this. Just a thought if you have a bunch of people interested and don't want to spend the $$$$ for the Katt Cruise. Our guests ranged in age from 4-73 and everyone snorkeled and loved it! In fact, we had a few guests tell us that was one of the highlights of their trip. ... just a thought!