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Passadiços do Mondego, on my list for quite some time! Hopefully sooner than later. It's around 11km linear trail, so likely it will be 22km since I don't plan on taking transportation back. 😉

Good idea! I have Reserva do Cambarinho on my "To Visit" list, but I should also get to know the course of the Mondego river better!

Hadn't heard about that one before! Just saw that it's in Caramulo, I also don't know that area; guess I can also place it on places-in-Portugal-to-visit list! ;)