It used to be the case that at each point where a road breaks through the boundary to enter a parish, a cache had been placed. In the log book for each of these caches a piece of information existed which could be used to locate a bonus cache: The Interior for Northill and The Interior for Old Warden. These caches have now been archived.
Northill parish has two websites: one for the Parish Council and a Community Information Web Site. The parish is home to the Ickwell May Day festivities which have been taking place on the green in Ickwell since at least 1565.
Old Warden parish has a website at https://oldwarden-pc.gov.uk/. The parish is home to the Shuttleworth Collection which is an aeronautical and automotive museum located at the Old Warden Aerodrome.
The boundary between the parishes here goes along Hill Lane which links the A1 and the Shuttleworth estate. You may think the road to be misnamed but in such a flat part of the country, any undulation is at risk of being called a hill! The nearby farm shop is the largest retail space in the Northill parish and sells all sorts of locally grown foods, pet foods and equipment, bird food, gardening equipment, etc. You may see their lorries around the local area going to and from deliveries.