Sunday, 23rd April, 2:30 pm start from Richmond Station. RICHMOND TO OSTERLEY LOCK – 2.5 HOURS/4 MILES Leader: Linda Foster. This is section 7 of the Capital Ring Route. A leisurely walk entirely on paving or paths, and almost all flat. Via the Thames Path, Syon Park and the Grand Union Canal. Coffee stop on route. Finish at Boston Mills Station; bus back to central Ealing.