I had a late holiday in Mallorca last year, and while not planning to go naked, there were certain plenty of opportunities!!
Firstly, the hotel indoor pool was quite a lot of the time, so after waiting for people to leave, I took my trunks off, and did a few nude lengths - quite refreshing!
The next day, I went a bit earlier, and saw a naked woman (gosh!) in the changing rooms - she didn't seem to bother, until more people started to follow me in!!
Around the island, Cala Pi was a quiet inlet, with steep sides, plenty of sand to get an all over tan!