If you find yourself in Costa Maya again, I recommend going to Mahahual (5 min taxi ride) and reserving a lounge at the Tropicante. I found instead of beach excursions, Mahahual beachside bars cater to visitors who prefer a spot to decompress. We had lounges reserved before arriving, and we were greeted ant the street when my party arrived. We ordered homemade ceviche (so yum!), guacamole and chips, a sandwich, a beachside massage. Their margaritas were top notch. It is a humble, but peaceful place. The owner and staff were all amazing, kind, always there when you looked for someone to get you something. They had some water sports, too, like Stand Up Paddle-boards. Oh, and a bunch of “take one-leave one” books!
in the end, you pay for what you order. No fee for the umbrella, table, or chair.