So let me preface this by saying I am a dive instructor. However my wife is pretty much a non swimmer. So we were on a catamaran doing a turtle watch snorkel tour.. The first stop they anchored the boat everyone jumps in and the current is unbelievable. Thankfully there was another boat anchored not to far away and I was able to get my wife to the anchor line till I could get set up and tow her back to our boat. Then I helped the crew tow other people back. So at our second stop I told my wife not to get in the water until I checked out the current. Well if anything the current was worse so I hollered at her not to get in. Meanwhile a lot of other people were jumping in. To get back to the boat this time I had to head towards the island to try to get out of some of the current and then swim up past the boat to get back on because I couldn't get to the boat going into the current. Now just a little extra I was wearing my dive fins not snorkel fins. Well to cut to the chase the crew did nothing about the people getting swept away even though my wife was telling them to try helping these people she said they were even laughing about it. So finally other boats started picking up the snorklers that were supposed to be on our boat and only then did this boat crew react. It was a scary expirence. And my wife and I complained at the excursion desk and wrote letters to the cruise line and got no response at all. We were very lucky nobody died that day and again the cruise line did nothing. So I always figure you get no real guarantees on these excursions