The most popular Madeira boat tour is by Catamaran. Madeira Catamaran is a company that owns three catamarans called “Sea the Best”, “Sea Pleasure” and “Sea Nature”. They specialize on searching for dolphins and whales and will give you a free ride if you do not get to see anything when you go out with them. The chances of you being able to see dolphins or whales are 95%.The dolphin boat tours takes about 3 hours and go out twice a day, every day. The catamarans anchors in front of the highest sea cliff in Europe, Cabo Girão, for a swim and a chance do do some snorkeling. The catamarans are quiet big, with the new double decker “Sea Nature”, taking up to 220 people. They all have a covered area and have refreshments and toilets onboard . They also offers special summer sunset and Desertas Island trips.