Tip 1: go to Bilbao, it's an amazing city for a long weekend. Beautiful to walk around and loads of nice terraces and restaurants .
Tip 2: stay in this lovely apartment! It really felt as our home :-). Good beds, fully equipped kitchen, perfect location and nice details (fridge with water and beers, Netflix, and our specially asked beach towels). Ibone is an amazing host! I stayed in quite some Airbnb's, this apartment truly deserves 5 stars!