Between Twickenham and Teddington lock the only sensible route involves the main road A310. The cycle lane southbound is narrow and parking is allowed by Radnor Gdns. at weekends. Northbound a bus lane is peak hours only.
Teddington to Hampton Wick uses Broom Road which is busier than ideal. Road closure in middle would help.
Hampton Wick Highstreet lacks cycle protection. Possible diversion to riverside path.