Üleoja tee-2A, Kloogaranna küla, Lääne-Harju vald, Harju maakond
Treppoja cascade is located in the spot where the catchment area of Treppoja, which is approx. 10 km long and 20 km2 wide, begins from Illurma cliff cape and then slides down through the slope of the limestone plateau into the Lahepere bay.
There are six up to 1.5 m escarpments within one hundred meters on this 2–15 m wide territory. The cascade has not been able to form a canyon because of its relatively small amount of water and young age.
Treppoja is one of the most beautiful cascades in Estonia, and visiting it in the summer or winter is always exciting. A pedestrian bridge has been built for visitors that is a safe way to enjoy the surroundings.