You should definitely go to Menorca. You will love it. Still in the summer there is lots of visiters but you can find places not so crowded if you know how to find them! Lots to explore and discover. I go there every year as I have family living there in Mahón area. With a rented car you can travel all aroung the island very easily.. I recommend a small car though! roads are very narrow sometimes.

I will post more pics another day!