We rented a 25'Cobia for the day. It was a gorgeous day, beautiful and sunny, with calm waters. The ocean was like a lake. The boat rental people gave us simple directions to a reef where we could snorkel. It was about 3 miles out and had a lighthouse sticking out of it, so it was easy to find. The snorkeling was AWESOME!!! Since we had the boat for the entire day, we snorkeled for a few hours, then just did some sightseeing.
All around, it was a wonderful day!