I'm thinking of doing the coast to coast walk in the UK, alone. It's about 12 days, I would probably do a mixture of wild camping and staying at campsites. I expect it would rain at some point, so I know I'll need waterproof boots and a jacket. What else am I likely to need? I'm not even sure whether it's better to take a tent or a bivvy bag to sleep in. Anything for cooking? I guess a power pack for my phone, though that's quite heavy. How much underwear and t-shirts?
I really don't have much of a clue, as you can tell.