Fen Rivers Way (Ely to King's Lynn)
Follows the Great Ouse through flat, pancake-level Fenland countryside for roughly 50km between two historic market towns. Perfect for families and buggies as there's virtually no incline – mostly riverside paths, farm tracks and quiet lanes across open fen. Dogs welcome throughout. Expect big skies, wildlife-rich waterways and proper rural solitude, with chances to spot kingfishers, herons and wading birds. Ideal for gentle multi-day walking or cycling sections at a time.