A granite monolith about 220 m high. A zigzag staircase of about 700 steps, built into a crack in the rock, takes you to the top, with a 360° view of the reservoir and its islands. The towns of El Peñol and Guatapé both claim the rock, which is why someone once painted a giant "G" on its side before being stopped.
Price: COP 35,000 in 2026 · Time needed: 1.5 to 2 hours · Tip: go at opening or late afternoon, and take water; there are shops at the top.
