The last summer holidays in 2012 brought me to discover the Rias Baixas in Galicia, in the north west corner of Spain. They are at a quite convenient distance from Madrid (550 km), but too far from Alicante (950 km). Hence, I am not familiar with the area, and I have become a new fan of the area.
We devoted a day to go to the Cies Islands, which are a group of islands near Vigo, nature reserve, and therefore the number of visitors per day is limited to only 2000 people. Tickets shall be booked some time in advance to make sure you can make it in the ferries. When you arrive to the islands, the clear water and long beaches of fine sand make you thing you are in the Caribbean (if you are lucky and get some sun, of course), but you will come back to reality if you dare to touch the extremely cold water.

The islands have a nice hiking trail to the different corners of it, and the sights are impressive, and really enjoyable.
Together with Formentera, it is one of those places that we should not let the rest of the world know of its existence, and keep for ourselves, or they will get too crowded…