Yes, it is by Mexico law that all rental Jet Skis are accompanied by a tour guide in Cancun. The guided tour, however, is a lot of fun and fast-paced, and most people who are skeptical at first come back saying it was better than if they had gone out on their own. Nobody knows our island and waterways as we do, and we know all the best places to take our guests. Also, from a safety standpoint, Cancun is surrounded by coral reefs that lie right below the surface sometimes and are hard to see, so going on a tour with a tour guide will also ensure that you do not get into a situation and can just focus on having fun on the water while enjoying the gorgeous scenery and sites around you.