Galissas is a sandy cosmopolitan beach with many amenities (sunbeds, umbrellas, water sports) and taverns. The beach is basically very crowdie from families staying on the hotel that is located on the edge of the cliff. On the other hand since you will be approaching with a yacht the bay has really nice waters to relax and swim. We encourage you to try the restaurant right on the side of the hotel, last on the right side. Really worth trying.