A great flat in a beautiful location - we had perfect weather but I think Lekeitio would have enough interest even when the beach is less attractive. The old town is very charming and there look to be good hikes in the surroundings (though we didn't go on any). If you go to the harbor around noon when the fishing boat (I think it was the Jesus Nazareth, the big blue one) comes in, you can buy fresh fish for lunch/dinner!