Dream Gate is located north of Tulum, on the jungle ranch bordering Dos Ojos. It's a collapsed roof cenote, with an iron ladder leading down to a wooden platform.

We're the only ones here. With another dark cenote close by and several air pockets, it's being sold as a cavern dive. Though that depends on your definition.
The left cavern loop is very nice, with lots of decorations. Unfortunately the water is a bit blurry today, due to a higher-than-usual halocline. It doesn't prevent me from shooting a six minutes video-clip sequence though!

Mid-way the right cavern loop Che closes the gap to a cave line which we follow for a short while before turning around.
Back in the cenote we circle it and do the left cavern loop once again in the other direction. Besides a cave fish I also spotted some pretty big cenote shrimps.