We spent four nights in the tent "palapas" at Sian Kaan. Perched above the beach amidst palm trees, with the sea breeze to keep us cool, we couldn't have asked for a more beautiful setting. The tents are basic but clean and comfortable, with hammocks on the deck. They were still re-thatching the roofs during out stay, and when the wind picked up, the un-thatched tents were pretty noisy. Shared bathrooms were clean but the showers were salty. Food at the restaurant,Cetli, was surprisingly gourmet. Delicious, though a bit pricey compared to the bargain accommodations. The beach is fabulous, and they provide boogie boards and snorkel gear if you have the energy to swim out to the reef. We rented kayaks and toured the lagoon, which was beautiful too. All in all, a wonderful setting and a great value if you don't mind "roughing it" a bit.