Wow, thanks for that zip, luv da beach!
I have seen a couple of shots, but not all these, it was a very pleasant suprise to see the topless one join in the full nude fun too. From the first photos, I thought Barcelona, but now am pretty certain that it is Formentera (just south of Ibiza) as the sand and rocks look like there. Almost all the beaches there are 'clothing-optional', so that would explain the mixed levels of swimwear.
EDIT...I have got beaten to it! ILTB,eh, does that mean there is a video????