After eating too much over the holidays, Cristina decides she needs to lose some excess weight by going back to exercising. During her workout, she meets Rony, an old friend and avid parkour practitioner. Let's see if he can offer her any helpful advice.

Let's take a peek at a trail running event at Mojanda Trail, which takes place on the slopes of Mojanda Lagoon, north of Quito, Ecuador. Participants must train to run through various types of terrain, including water, at a high altitude. Let's hear from some of the participants!