Bikepacking through Portugal during Christmas

Hi as title says, I’m solo traveling through Portugal with end date in Porto 28th. I’m currently in Lepe, Spain and was wondering if there are any kind souls that would let met put up a tent in the garden along they way?

I also wonder if there is anything going on during Christmas 24th that I could participate in. Any charity going on or anyone who would let a stranger join for Christmas? I would love to help out in any way! Any tips would be appreciated

I’m from Sweden, 27 years old! Hope to hear from anyone 🙂