we rented one off the pier last march for $30 for the day. Great idea, made it about half of the way around the island. One huge word of advice....if you pull over to get in the water, leave the key on the beach. I got in the water not even thinking about it but didn't have it when I got out. Tough moment for a honeymoon cruise with about 2 hours left before the ship left. We were on a deserted section on the east side of the island and could have left the key in the ignition. Luckily the Cozumel debris patrol (pick up tires, wood off the road) came by in a beat up old truck and got us back to the ship in time (with the scooter in the back).