We cut across to Hampton then roughly follow the Thames upstream using NCR4 from Chertsey to Staines. A steep climb to Englefield Green is rewarded by lunch at the Sun Inn then we enjoy the practically traffic free roads of Windsor Great Park and a track into Windsor. We than return more directly to Twickenham with more mixed surroundings but finishing with our local Crane Park trail. 38 miles with one big hill.
http://www.bikely.com/maps/bike-path/windsor-circuit