Booking a guide for MA at Costa Verde is 35.00 per person. We went to the park ourselves and got a guide for our family of 4 (and only our family of 4; had the guide to ourselves) for 20 per person including entrance fee for the day. Mangrove tour is wonderful, but also cheaper to book on your own. We stayed at Costa Verde and loved our room. It was in Costa Verde II which was a great location for the pool, restaurant, office, etc. This is an adult only building and pool. No critters in the room. No AC, but we did not need it as two walls of the huge room were screen and there were 3 ceiling fans. We took the bus to the beach. The bus will pick you up at any point on the road. 35 cents each way.