We saw two manta rays float by, for a total of five seconds of manta ray... Well on the water in the freezing cold, feeling like our arms were going to drop off (and my husband and I are gym rats), for 45 minutes.
On the boat ride back, two of our kids and 5 other passengers were vomiting over the rail from sea-sickness. The boat was not well cared for either.
The crew was GREAT.