Direct answer
Two ferry companies (Ultramar and Winjet) run between Playa and Cozumel every hour. ~45 min crossing. ~$23–28 USD round trip per person. Buy tickets at the Playa Fundadores pier or online. Ferries run 6am–11pm. Take the first morning ferry if you want a full Cozumel day; last return is 10pm.
Ferry from Playa to Cozumel is straightforward — two companies (Ultramar and Winjet) run hourly crossings from the Playa Fundadores pier (next to the central park). 45-minute crossing, ~$23–28 USD round-trip per person. Schedules run 6am to 11pm. Take the 7am or 8am ferry for a full Cozumel day. Reserve seats online during high season (Dec–Mar) to avoid sold-out departures.
