As a person who does not find great joy in sharing a small stretch of beach with thousands, I typically wander away from the crowds and find a stretch of deserted of beach.  I've been here a few times and have explored both north and south.  To the north it is mostly sharp volcanic rock, to the south there are many sandy beaches separated by sharp volcanic rock outcroppings.  That is until you get almost to the southern tip where white sandy beach takes over and stretches for more than a mile.