Pretty much everything that's been said will help. I did Portugués in 2022 in May and it got up to 35°C some days.
I would start early, run my buff through the water fountain and stretch it to cover my neck and top of my head.
I got into a...
+1 on that. That's what I did when I walked from Porto to Santiago in 2022.
Btw, Barcelos was one of my favorite places in all of Portugal. I ended up going back a year later with my Wife. Such a neat town. Ponte de Lima and Redondela were...
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