Check out...Cabanas Santa Fe - Beach Camping and Cabanas...Beach budget living. Camping and cabanas with/without bed/hammock, double rooms with bathrooms. See the website to see http://studenttravel.about.com/od/mexicohostels/tp/hostels_tulum.htm
Top 5 Tulum Cabanas and Hotels, Beach Camping and a Hostel, Too
Top 5 Tulum Cabanas and Hotels, Beach Camping and a Hostel, Too