A series of 6 puzzles exploring a scenic area on the Berks-Oxon border.
The cache is at N51º 33.ABC W001º 19.DEF where ABCDEF are the official UK chart positions of these bands, 2-8 January 2000:
A Vengaboys
B Artful Dodger
C Westlife
D John Lennon
E S Club 7
F Alice Deejay
No, I can't remember 3 of those either!