We will be taveling to Mexico at the end of June. We're flying into Cancun, plan to head to Cozumel for 2 nights and then down to Soliman Bay (between Akumal and Tulum) for 6 nights. We'll be picking up a rental car in Cancun and will drive it down to Playa to catch the ferry over to Cozumel. Does anyone know if there is overnight parking available where we could leave the rental? If so, is it safe and is it expensive? Thanks in advance for the responses!