6. Boscastle to Tintagel, South West Coast Path, Cornwall
With 630 miles to choose from, the South West Coast Path is considered one of the best long-distance coastal walks in the world. It’s geared up for serious walkers as well as being an ideal choice for a post-Christmas Day ramble. Running from Minehead in Somerset around the coast to Poole in Dorset, there are some beautiful and spectacular stretches. A particularly scenic stretch runs from the pretty harbour village of Boscastle to Tintagel, in Cornwall, which is nine miles one way. Make sure you have a car parked at the other end to avoid a Boxing Day epic.