My husband and I will be in Cozumel for 3 nights, mainly there to get our Advanced OW certification. Our dive operator said we would be leaving from El Cid and Marina Caleta. Question is, do we need to rent a car during our stay? If we do, are the parking lots near those areas safe to leave the car while we go diving? Or are there enough places to eat and walk around there that we don't need a car?
Thanks in advance!