Riding on a Jetski after dark can be dangerous. BUT it is also against the law. Here is a Story of riding at 3am and the consequences of that misadventure. http://www.myfoxtampabay.com/dpp/news/local/hillsborough/jet_ski_fatal_lake_hobbs012812
be safe on the water, Jetskis are Motorcyles on the water and just because you are riding on the softness of water. THINGS you hit sometimes do not move and riding after dark and without the proper safety gear can always be a lethal combination.