We launched from Haulover in North Beach Miami and headed over on Thursday June 16th, the crossing was pretty rough, had waves between 3-6ft in height and took us 3 hours to cross. Pretty much used a full tank of fuel to get there!! the island is amazing, so much to see and do. We came back early Sunday morning, the ocean was really smooth and only took us just under 2 hours to get back and only used 1/2 a tank. It is a must do trip, but wouldn't do it on anything smaller then a 20ft boat and twin engines.