Good to hear that Dressel Divers was good! We used Sand Dollar a few weeks ago and were very disappointed. The two boats were tiny and frankly worn out! Ours was so crouded - about 15 divers/guides - we had to return to the marina to change tanks out after the first dive as there was not enough room on the boat for the second tank!?!?!? The dives were good but I think they have the oldest and smallest boats in town.