A series of 10 caches taking you along the River Yare in the RSPB nature reserve at Surlingham
See number one for full description.
Cache placed with kind permission from RSPB
At the above coords you should see a bench with some writing carved into the seat.
How many letters in the first word =A second word =B third word=C fourth word=D
You are looking for N52 36. (A+B) (C+B) (A+D) E001 24.(A-B) (C-D) (A+D)
Check sum 58