We did on Playa Nosara. It required a walk across the mouth or the Nosara river at low tide, which is the only way to get to the beach, which must be two miles or so long. After crossing the river in the morning and getting down the beach a ways, we walked it nude in the morning. Other guests staying at the same time did so as well during the day. We took a drive up north on the bumpy, gravel roads that runs parallel to the coast and because the beaches are so long and only relatively few access points, there appeared to be several areas where one could do so, although we did not. Our mission that day was mainly exploration.