If you want to learn to sail, I offer you a perfect boat to start with and a sea, the Mar Menor, where there is never a rough sea.
Of course if you want we can also go sailing in the Mediterranean.
Although the activity is designed for a single day without spending the night on board, we could see the possibility of more than one day.
The classes are private, 1 student only, but if you want you can come accompanied by up to 3 more people (extra charge €50/pax)
You will do the usual sailing maneuvers: tacking ahead and stern, setting the sails, steering at the helm, adjustments, etc.
You can also fish, bathe etc.