Also, get some water flasks (like those flexible silicone ones), you’ll be drinking a lot, and with a flask it’s more convenient to fill it under the tap (tap water is potable in Spain) than search for a store to buy a bottle of water during siesta :)
This, but for summer months, I would replace waterproof shoes with some quick-drying non-waterproof trail runners of hiking shoes, unless one plans to do some real mountaneering stuff (e.g. 2-2.5km+ of altitude) and potentially get exposed to low temperatures. For the rest of the territory it’s usually better let the shoes get wet and let them dry on the go rather than gather that sweat and humidity inside the waterproof shoes.
Finally some good use for AI! I’d still prefer the original GTK1.2 version, though.
Hold up. Angela Merkel does Linux videos now?!