Best Adult-Only All-Inclusive Resorts in Los Cabos. Share Pin Email Search go Destinations Situated in the heart of Cabo San Lucas, on El Medano beach. Breathless Cabo San Lucas is wonderfully different from other Cabo resorts. Our all-adult, Breathless Cabo San Lucas offers the best of both relaxation and. Pueblo Bonito Pacifica Resort & Spa-All Inclusive-Adult Only, Los Cabos Pueblo Bonito Pacifica Resort & Spa-All Inclusive Inclusive-Adult Only Cabo San Lucas;.