Before you leave, you must inform your passengers of the safety features of the boat, such as where the life jackets, first aid kit, oars, and fire extinguisher are located and how to use them in an emergency. You should also warn them about the effect of the boat’s movement, as well as the sun, waves, and wind. Did you know for example, that the effect of alcohol on your body is greatly enhanced in a boat? For everyone’s safety, make sure your passengers don’t drink too much. Here’s a tip to prevent overdrinking: keep only a small amount of alcohol on board and bring lots of nonalcoholic drinks.