Cenote 7 Bocas

What an experience!
There is a tour company that you can go through to see various cenotes, but we just got in a taxi after breakfast on a whim and followed signs with arrows to cenotes.
We got a taxi from Puerto Morelos for round trip and for the driver to wait up to 2 hours for 500 pesos without tip.
Be prepared for nature: this is her playground for you to have fun. There are tree bats flying in the caves, but they are harmless. There are fish swimming in the water, but they quickly swim away when you get in. And watch out for the imaginary water creature that your mind will create along the way.
Technically there are 7 openings, but really you can access about 4 through the openings and view 2 more from the top. The 7^th one isn’t viewable, but it is there.
It cost 300 pesos per person. Depending on the day, time, season, you could be there with a crowd or completely have the place to yourself. We arrived on a Monday around 11:30am. My husband and I were fortunate to have the place to ourselves.
We thought we wanted a cavernous experience, but soon afterwards we realized we’re not immediately as adventurous as we thought. We got over some fears (e.g., heights, dark caves, water that we couldn’t see the bottom of, and bats) after a long while and multiple pep talks. Super thankful we were there by ourselves to have this side growth-​producing experience. Boca 3 is completely open and you can jump in! It’s a bit of a jump in height. For non-​risk takers like myself, it was a bit terrifying. Once I jumped, I felt empowered… and still a bit scared.
Pack a lunch and you could spend an hour or two here easily. If there were crowds, you may feel a bit claustrophobic since the caves are quite small and intimate and really could comfortably handle a handful of people at a time, while the rest of the space above ground could handle a large crowd. There are plenty of seating areas, tree platforms for views from above. They offer horseback riding and ATV rentals too. If you want a more open cenote (with zip line), they exist (probably similar to a small lake/​river), just look at tour brochures.
It made for a wonderful, private adventure and a priceless memory.

Un increíble lugar natural donde la magia de la selva se une con el misterio de los cenotes que en pocos lugares del mundo se ven. Llamado siete bocas porque son siete las entradas que se tienen desde la superficie del suelo al cenote subterráneo. El lugar es hermoso, en algunas entradas tienen escaleras y en otras, si eres muy valiente, puedes aventarte de clavado unos 5 o 6 metros. Una vez adentro la idea es recorrer de una entrada a otra como en un río subterráneo. La luz que alumbra es la luz del sol que entra precisamente por las entradas, lo que hace que la iluminación sea espectacular y los tonos verdes, azules y dorados se mezclen.
Puedes llevar tu lunch o llevar alimentos para hacer un pic nic, tienen mesas con palapas y bancos alrededor, todo hecho con madera de los mismos árboles de la región. Sin duda te lo recomiendo muchísimo, vas a pasar un tiempo increíble con quien decidas ir.

Located near the town of Puerto Morelos off the Ruta de los Cenotes, Cenote 7 Bocas is an interesting set of cenotes to explore. Boca means «mouth» in Spanish, so this is a set of seven water holes. Some are connected by an underground river. Some you can jump in from above, and numbers 5 to 7 are not accessible.
The road is unpaved once you leave the Ruta de los Cenotes and is not well marked. Other trails go off to the sides. We brought a guide whose expert local knowledge was purchased with some tacos, a few bucks and some cold beers. Since he knew the cenote keepers, we had a discount from the regular price of $ 20 bucks or so. Everyone was happy with our loose arrangement ’cause we never would have come this way by ourselves. We’d never even heard of the Route of the Cenotes, but you can guess what it is.
Cenote 7 Bocas is one of the better cenote experiences, as some cenotes around here are just glorified swimming holes. This one is an underground river and cave swimming experience.
You descend by stairs into the first boca and enter a huge cavern filled with water with a wooden platform. Your eyes will adjust to the darkness to see the rock formations. The keepers provided waterproof flashlights. The water temperature was cool even on this hot day, though we did wear our own wetsuits because cenote swimming was a target activity of this trip. You enter the first boca down the stairs, then swim the underground river to another boca. There are ropes to help guide you through the darkness of the cavern. I wouldn’t do this without a guide.
This cenote was pretty good, but I’ve been in a much better underground river one twice. I’ll review it if I can rediscover the name. If you plan to swim in a cenote, don’t wear sunscreen or you will pollute the water.