A lifeboat is a small watercraft carried on a ship to provide a means of emergency evacuation in the event of a disaster aboard the ship. Lifeboats may be rigid or inflatable vessels; the inflatable type are sometimes referred to as liferafts. In the military, a lifeboat may be referred to as a whaleboat, dinghy, or gig. The ship's tenders of modern cruise ships are often designed to double as lifeboats and "lifeboat drills" are a part of the cruise experience. Inflatable lifeboats may be equip ...