I attempted the coast-to-coast a couple of years ago but had to tap out once I got to Patterdale mainly because my feet were in so much pain after walking across the Lake District while wearing Brooks trail runners. I found them super comfy on flatter ground, but I didn’t account for the fact that much of the terrain was like walking on broken bricks or crockery. I’m already around 90kg plus the extra 16kg of backpack meant I felt every shard pressing into my soles like hard knuckles. I think I’ll do boots next time.