Take a day trip to Guatape. While there swim in the lake, and climb Penon de Guatage - the rock of Guatape. Engineering and architecture buffs take note of the "zipper" construction of the stairwell… the water you drink at the top is delivered by a little old man who goes up and down that rock 20-40 times a day with supplies. (see my overall Take a day trip to Guatape. While there swim in the lake, and climb Penon de Guatage - the rock of Guatape. Engineering and architecture buffs take note of the "zipper" construction of the stairwell… the water you drink at the top is delivered by a little old man who goes up and down that rock 20-40 times a day with supplies. (see my overall Medellin thoughts here)…see moresee less