Is it safe to drive around the island?

Yes, the main loop road is paved and well-maintained. Just watch for iguanas crossing the road.

While USD is widely accepted, you will get a much better exchange rate if you pay in pesos at local restaurants and shops.

4 Days in Cozumel: A Practical Itinerary

To get the most out of a 4-day Cozumel trip, divide your time between the eastern wild beaches, the western reefs, and the inland jungle sites. Rent a Jeep for the full duration to avoid relying on expensive and inconsistent taxis.

Rent a vehicle upon arrival. Avoid airport taxis. Walk to the rental car counters in the terminal or pre-book with a local agency like ISIS or Rentadora Fiesta. A Jeep or small SUV is necessary for driving the loop around the island.
Pick your base. Stay in San Miguel for food access and walkability, or stay in a resort on the northern or southern hotel zones if you want direct ocean access and solitude.
Book reef tours in advance. If you plan to snorkel or dive, book with a reputable operator like Scuba Tony or Blue Magic at least 48 hours before you arrive. The best boats depart by 8:30 AM.

Is it safe to drive around the island?: Yes, the main loop road is paved and well-maintained. Just watch for iguanas crossing the road.
Do I need pesos?: While USD is widely accepted, you will get a much better exchange rate if you pay in pesos at local restaurants and shops.