There are plenty of "adults only" all-inclusive resorts to choose from in Cancun and zany contests and some even offer au natural (nude or clothing optional) facilities. . Secrets Maroma Beach Riviera Cancun - Star Adults-Only Resort . Browse world class all inclusive clothing optional resorts and book an affordable vacation package today. Shop the best deals & save with us online now!. Answer 1 of 5: Is this a clothing optional resort? We are scheduled to stay there Aug. and a freind who just returned from Cancun said she thought it was a .