Lovely escape on a secluded beach, 5min walk from a small fishing village in Sian Ka'an. The common areas are lovely, with clean, soft sand, hummocks, tables and chairs and cushions to sit on. I wish I had stayed there longer.
The shared bathrooms were clean, pretty, and comfortable to use. I stayed in a "glamping" tent, which was nice but had a tendency to overheat because the air doesn't flow through (there is only one opening), so it was helpful to have the fan. (The air is hot, but there's a constant breeze off the water, so outside the tent it was quite comfortable.)
The restaurant has a variety of dishes, the coconut pancakes were nice, the guacamole and the fish were kindof okay, and the chicken skewers were outstanding, so it's all a bit of a surprise. :) There are other restaurants in town with more traditional Mexican food.
Some seasons there is a lot of seaweed, so not nice to swim and it smells. As for the “outdoor pool”, it's tiny and only for sitting.
The road here is like driving on the moon, so don't drive if you get carsick. To take a boat, show up at 3pm at the entrance of Hostal Pueblo Magica in Tulum, where there's a van transfer to a boat for 650MXN. Return is at 7am.
I would recommend Cielo y Selva to anyone who wants to get away to someplace where it feels like you're away from everything on a tranquil and secluded beach paradise.
I wouldn't recommend it if you're looking for a lively area, not much other than scenery and fishing in Punta Allen.