the blue water looked so inviting Pavla decided to try for a paddle. Some locals were shouting from the bridge not to do because of some unspecified danger, but it wasn't clear if the danger was real or just something perceived by them as such. The following video captured the conversation and Pavla paddling off to the blue waters. Turns out there are crocodiles living there, as documented in this article http://www.theyucatantimes.com/2014/08/12-foot-crocodile-almost-snacks-on-tourist-in-riviera-maya/