### Clue: Where British hikers might go wild in a wood, then race over mountain into 22's quarry? (9,8,4)
### Answer: SNOWDONIA NATIONAL PARK 
 ### Explanation: Definition: Where British hikers might go
 [**Anagram of**(wild) IN A WOOD **plus**(then) NATION(a race/a people belonging to the same nation) **plus**(over) ALP(a high snow-capped mountain)] **contained in**(into) SNARK(the quarry in 22's "The Hunting of the Snark").