Stick a toe in the waters of Multum Ha Cenote. Weather permitting, you can go for a swim or simply spend your time spotting birds.
This waterhole is on the to-do lists of many travelers to Colonia Roma. But Multum Ha Cenote isn't the only highlight in the area. Zócalo, Angel of Independence Monument, and Palacio de Bellas Artes are some other worthwhile attractions nearby.