At the end of the main road running to the north side of the island, lies Portinax. The small development there has little shops and a few hotels. The beach itself is preety good, and very quiet compared to the other places we went to. It seemed to be a bit of a family place, judging by all the kids we saw. If you are looking for a cool time with your mates, check out another beach. But, if you are looking for a quiet rest in the sun, and are on the north side, this is your place.
One place I had heard of before going to Ibiza was Portinax. It was here that some scenes for the film 'South Pacific' were made.
It is a beautiful part of the Island.