A 10 mile Pilgrimage to Guaratiba, Brazil

We have just learned that we will make a 13km (roughly 10 miles) pilgrimage hike to Guaratiba, Brazil, near the Ocean for a Vigil and Morning Mass with the new pope! We are hoping to do some hikes in March (haha, AFTER the Marathon!) to prepare ourselves. We will also have to hike back to Rio when the day is done. What sacrifices would you be willing to make to grow closer to Jesus?