Galartha

From Memory Alpha, the free Star Trek reference

Galartha is a popular rock climbing destination on the planet Risa. It is notable for having a cliff face that changes pitch, and handholds, as a person climbs it.

In 2152, during his visit to Risa, Travis Mayweather decided to spend his shore leave by climbing Galartha, but ended up breaking his leg and had to return back to the ship. (ENT: "Two Days and Two Nights")