Visited Casa Abau in January, and did a one tank dive off the beach. Onsite dive shop very helpful and affordable, good gear to rent. Conditions on the day we were there were excellent, good visiblility, good varity of sea life and coral formations. My wife and I also enjoyed the beach, beach bar for refreshments and a message at the sea side hut afterward. Showers and restroom facilities also available. There is a charge for the shower but is included with the lounge chair rental.