The Passeier wasserfall or Kalmtaler wasserfall is 48 meter high waterfall south of St Martin in Passeier (west side of the valley) in the region Trentino – Alto Adige, Italy.
From St Martin drive south over road ss44 until you see a road at the right (Trifterweg), go right here. There should be a parking at the end of the road. From here it is a short walk to the base of the lower Passeier wasserfall.
Upstream there is another waterfall, but I am not sure you can walk to this waterfall.