This cache can only be found by completing the same named Adventure Lab in the village. Please remember to write down your answers in the Adventure Lab, so you can work out the final co-ordinates.
Upper Rissington, formally RAF Little Rissington, is a very young village and didn't become Upper Rissington until 2000. Before 1936, the top of the hill, at around 730ft which Upper Rissington sits on, were just fields above the village of Little Rissington. Much has happened on top of this hill since 1936 and is now a thriving community since the RAF sold off the living and maintenance areas of the RAF base in 1996. The airfield and apron are still very much in use by the RAF and there is usually something happening on or above the airfield.
The route for the Adventure Lab is about 3 miles, depending how well you discover routes within the village. The walk can be completed on good paths, so makes it suitable for all and being an old RAF base, the village doesn't have a through road, making it a bit safer but still take care within the village. Hopefully having now completed the Adventure Lab, you know a bit more about this village and have the information to calculate the final co-ordinates for this Bonus cache.
Please use this updated formula (28 Jun 24) to calculate the Bonus cache co-ordinates:
N51 5E.BM(A+R) W001 4(N-C).(P-F)(F+R)M
The published co-ordinates of this cache, you will find an area where you can park on the street in the south of the village or use the included alternative parking in the north of the village. I would suggest the Adventure Lab is done in order 1-5 or 5-1 but you can do them in any order.