I am going to be in Portugal with no real plans in mid-June. I'm thinking about going on a longish (~1 month?) backpacking trip. What's a good place in Europe to do that?
Things I'd like:
One long uninterrupted hike, in nature as much as possible
Trailhead accessible by rail/bus
Not unreasonably cold
I will have a tent and sleeping bag with me. It doesn't have to be in/near Portugal, just somewhere in the Schengen Area. I am relatively fit and experienced at backpacking, I don't expect I'd have trouble with most trails.