This is one of the most unique things I've ever done in my life. I seriously cannot recommend this experience enough - if you're in Mexico City you need to book this now!!!! The value is unbeatable and the experience is once in a lifetime. The host was well prepared and there were refreshments and snacks for the entire boat ride including mezcal, beers, water, sparkling water, chips, fruit, etc etc. A small boat selling pulque rowed by and the host bought us some to taste and share. This is an experience you cannot do on your own as the host is able to keep the island open a bit later so you see the creepy transition into nighttime on the island (the REAL island - there are many fakes that most boats will take you to, but this one gets you to the original). The boat ride back by candlelight is nothing less than magical. It was informative, unique, safe, and absolutely incredible. Seriously book this!!