If you go just north of Formentera, by a few hundred meters, then you will come to the island of Espalmador. This small island has captured the imagination of many a day tripper from Formentera and Ibiza and is well worth a visit.
You can walk from Formentera to Espalmador when the water is shallow, but don't do it. However, easy it may look to cross the few hundred meters from one island to the next what you cannot see is the strong current that could pull you under, and quickly turn a fun adventure into disaster. From Ses Illetes you can get picked up in a boat, and that is by far the safer option. There are also boats from La Savina, so there really is no need to risk life and limb.
If you are based in Ibiza then you will find yachts available for charter. The good thing about this option is that you don't have to worry about calling into any ports, as you can just drop anchor at one of the beautiful spots around Espalmador. If you are based in Formentera then you can get a boat from La Savina at some time between 10:15 and 13:15. Make sure you don't enjoy yourself too much and forget the last ferry back at 17:30.
There are mud baths on Espalmador in the middle of this beautiful island. It is a naturally occuring mud bath at the northern end of s'Alga beach down a track that takes you through typical Mediterranean scrubland until you reach a massive mud bath that is packed with young tourists during the summer months who have all come for one of nature's beauty treatments.
It is well worth your time to head to this northern point and enjoy the mud baths.
Even though mud baths can be a great place for a mud fight, please restrain yourself. Like the rest of the island's natural habitat this area is to be treated with respect.
Espalmador is a little different from the formentera migjorn beach as it has more white sand. But Platja de Migjorn is a good spot too and you can read about it in this article: http://www.squidoo.com/formentera-migjorn
