A raft is a flat structure that floats on water, typically made from materials like wood, plastic, or inflatable materials. It is often used for recreation, transportation, or as a platform for fishing. Rafts can vary in size and design, from small inflatable versions to larger wooden constructions. Rafts are commonly associated with activities such as white-water rafting, where groups navigate through fast-moving rivers. They can also serve as emergency flotation devices in situations where a boat capsizes or when people need to cross a body of water safely.