They are saying stairs workout are the best. In that case, hiking La Piedra del Peñol is the best and most beautiful workout of your life.
El Peñón de Guatapé is a must see jewel when you go to Medellin. In the 1940s, the Colombian government declared it a National Monument. It is 2 hours away from the city and the easiest to visit it is to take a tour. I took a private tour: Land Venture Travel. It is very affordable.
The rock was first climbed officially in July 1954, when Luis Villegas, Pedro Nel Ramirez, and Ramón Díaz climbed the rock in a five-day endeavor, using sticks that were fixed against the rock’s wall. When at the top, amazed by the beautiful view, they thought of a way of allowing people to get to the top and see the view. This is how the stairs were built in the middle of the rock. Luis, Pedro, and Ramon wanted to share the beauty with the whole village.
On the way to the Piedra del Peñol, the rock of Guatapé, you can stop a few times to take pictures of the rock from far. Impressive.
When you arrive at the rock, you can see all the stairs you need to take to get to the top. 740 of them! Take your time, you can do it. Make the effort to go up those stairs because the view from up there is just out of this world. The summit contains a three-story viewpoint tower, a convenience store, and a seating area. Just relax and admire the view. Peaceful.