Bottom Time Divers provided superb service. The fast boat had a cover, and could hold a maximum of 6 divers. We had a group of 4 divers, and we were the only ones on the boat except for one day. Bottom Time Divers was very flexible about dive sites, times, pickup location, etc. Divemaster Raul was professional, thorough, and helpful. They cleaned — not just rinsed — our gear at the end of each day and had it set up and ready to go on the boat when we met them the next morning. They provided clean towels on the boat and bottled water, fruit, and snacks between dives. Diving was excellent, aided by Raul’s knowledge of the Cozumel reef systems.