Kew
Tennis
Along the river path
Cycle, jog and walk.
Richmond
Boat ride
In summer months, either upriver to Teddington Locks or Hampton Court Palace, or downriver to Westminster, offers a good way to relax while enjoying the riverside scenery. Some boats offer a commentary service. The boat ride to Hampton Court takes about an hour and a half, to Teddington Locks about 45 min, and to Westminster about two hours. Boats depart from a dock close to Richmond bridge. You can also hire rowing boats next to the bridge.
London Wetland Centre
Substantial nature reserve on the old disused Barn Elms Reservoirs. A major wetland habitat for wintering wildfowl and and an excellent choice for any keen birders visiting London.
Orange Tree Theatre
Offers theatre in the round, where the audience surrounds the stage.
Richmond Theatre
See a pre-West End play at this pretty Victorian theatre.
Curzon
Arthouse cinema.
Richmond Adult Community College
(http://www.racc.ac.uk/) offers short- to medium-term courses on subjects such as cooking, foreign languages, it, and business.