First of an extended series of 20 caches on a walk of 4-5 miles around Grantchester, reaching almost to the Cambridge suburb of Newnham at the north end. There is also a Church Micro cache en route, in Grantchester.
Terrain is flat and mostly gravel tracks and bridleways: everything can be cycled comfortably except the first 50 yards or so from the road past cache 01, but be warned that parts are likely to be muddy, even in good weather.
You can park either in the village (plenty of on-street options) or at the Cambridge end: there is a small area for about 10 cars at the end of the cycle path, or a larger car park at Lammas Land.
The entrance to this footpath from the road isn't obvious, or signed (I thought it was when I placed it). Follow the sign to 46 Mill Way then look for an opening on your right.
This cache is a small clip-lock box.
Links to cache listings: 01 02 03 post 400 tree 04 05 06 07 08 09 10 11 12 13 14 climb 15 16