Thames meander refers to a long-distance journey over all or part of the River Thames in England. Walking the Thames Path is itself a meander, but the term usually applies to journeys using other methods such as rowing, punting, running, or swimming.
A Thames meander can be a social expedition over a few days, generally in a Thames skiff or a punt. However more specific meanders are competitive events, or record breaking attempts. Means of propulsion include swimming and running and propelling virtually every type of small craft that floats on water. Meanders are often associated with charity sponsorship. The normal start of a meander for craft is Halfpenny Bridge, Lechlade. The finish is often Teddington Lock but other points in London are used. A "giant meander" for craft goes all the way to Gravesend Pier. The Thames Meander run begins at Reading, Berkshire.