As on most beaches in Mexico, nudity is not permitted on Los Cabos beaches. If you head to a beachside bar, it's appropriate to put on a cover-up, although you'd be hard-pressed to find a strict dress code at any of these places unless you're at one of the more posh resorts. As tempting as it is to pick up seashells from the beach, be advised that U.S. Customs commonly seizes these items upon reentry to the United States. Packing a picnic or cooler for a day at the beach is a great idea, as few of the public beaches have restaurants or food vendors. A few beaches have vendors offering umbrella rentals, but if you're really keen on having one for shelter, it's best to take your own.