Take M11 to J10 (Duxford). Turn right onto A505 past the air museum. After the pet crematorium turn left to Chrishall Grange and at top of hill turn left to Elmdon. At Elmdon church bear left onto Ickleton Road and park about 100 yards ahead near School Row terrace – postcode CB11 4ND.

Walk is 5.3 miles in morning via Chiswick Hall to to Gt Chishill (pub), passing the high-point of Cambridgeshire (take oxygen?). Afternoon return is 4.9 miles via Chrishall and Park Wood. Total is 10.2 miles. Paul’s phone on day 07810 523452.