Three of us went with Victor and helper (sorry forget his name) on a combination kayak tour to the Whale's Tail and up a channel into the mangroves. The equipment and service was first rate. High end sit on top kayaks with helmets and life preservers and very good snorkel equiment, not the cheap junk one often encounters on these types of tours.
The visibility wasn't the best but we saw a good variety of fish including a moray eel, an octopus, and some rock lobsters. The paddle up into the mangroves was nice. Victor knows his birds and has lots of useful stories and information.
A highlight is the CD provided with photos and video of the tour. We didn't have to take our own equipment and Victor did a great job capturing the experience. Recommended.