In the past couple of years I've taken two trips to Grand Cayman for diving. Both times, I had the pleasure of going out with Tom Byrnes and Cayman Marine Lab. The first was back in early June 2007. It was a great couple of days diving off the North Sound. I saw a shark (hammerhead) for the first time,... more

We just returned home from another great dive vacation in Grand Cayman. We have been diving with Tom Byrnes and Cayman Marine Lab since 1992. He and his crew have been a consistent provider of excellent service. The knowledge that Tom has about dive sites around Grand Cayman and the marine life are unmatched on the Island. We have had... more

I've been diving since 1980 and have joined Tom at Cayman Marine Lab numerous times during the past 23 years. Tom knows the best dive sites around the island and has turned us onto some of the most exciting professionally run dives that we've ever experienced anywhere. An added attraction is that CML is small enough to offer flexible, personalized,... more

If you are going to travel to Grand Cayman for scuba diving, contact Tom with Cayman Marine Lab. I just call ahead of time to let him know when we are coming and what equipment we might need, and he comes through with exceptional service every time. His opperation is very personal and geared for your enjoyment. I have always... more

For over 20 years, I've been diving with Cayman Marine Lab and Dr. Tom Byrnes in Grand Cayman. As a Ph.D. in marine biology, Tom is an expert on the waters of Grand Cayman and the life therein. Tom is the original "small boat operator" in Grand Cayman, and has earned a legion of loyal repeat customers. Both novice and... more

I really enjoyed diving with Tom while staying on Grand Cayman Island. On the first dive we dove deep reefs, and the second dive was a wreck dive. Both dives were fantastic. Tom is a great guide. Look forward to returning and diving again with Cayman Marine Lab in the future. Dave S. more

I went down to Grand cayman with 2 other divers . One was a new diver and Tom was just wonderful . His relaxed way and competence enhanced the new divers experience . He was also great at enhancing a new divers experience with the world underwater sharing his knowledge of the fish we saw . . We will definitely... more

Tom Byrnes (PhD in marine biology) has been a long-time resident of Grand Cayman and from what I understand, was one of the first "small boat" operators. The times I've been diving with him, there have not been more than 8 people on the boat but he'll run special boat trips for groups or families. We always dived where the... more

I've been diving with Cayman Marine Lab annually for over 20 years and I continue to be awed by the experience. The owner, Tom Byrnes, has a PhD in Marine Biology and has a great knack for pointing out interesting things under water and then explaining them to us when we get back on the boat. During the interval, Tom... more