Marathon Jet Ski Rentals is the easiest way to rent a Jet Ski in Marathon. Come explore the beautiful waters of Marathon! Yamaha Jet Skis are in excellent condition, well maintained, and our staff is there to provide a detailed Safety & Operations Briefing. Life Jackets are provided. All Jet Skis have an extended platform on the back. This gives you the ability to easily get in and out of the water and do some snorkeling if you’d like. Super Cool!