|Location:||At the road 203 Bovec-Kanin near Žaga. You can see the waterfall from the road, but there is a trail on the left side of the gorge.|
|Classification:||Karst spring in limestone cliff|
|Dimension:||H=106m, W=18-20m, max amount of water 100m³.|
|Accessibility:||road: yes, waterfall: no|
|As far as we know this information was accurate when it was published (see years in brackets), but may have changed since then.
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This waterfall, called Boka is the highest waterfall in Slovenia. The first stage is 106m high and 18m wide, the second stage is 33m high and 18m wide. Those stages are not clearly separated, so many people see only a single waterfall. Different heights are given, in the range 139m to 144m.
It is listed, as this is actually a spectacular karst spring: a subterranean river which emerges from a cave entrance in a high limestone cliff face creates this waterfall. As typical for a karst spring, the amount of water depends very much on the season, so the waterfall is rather impressive during snow melt or after heavy rains. The peak production is 100m³/s, while the lowest production in autumn or winter is 2m³/s.
The Boka creek is a tributary to the nearby Soča river, it is only 500m long. The road crosses the Boka on a bridge which offers a great view of the upper part of the waterfall. There is also a parking lot and a single lane gravel road which goes to the foot of the waterfall. To see the karst spring you must take the trail which splits to the left 100m from the parking lot. This trail goes uphill and has a via ferrata section before it finally reaches the spring. Although it is not far, the trail is 3.5km long, has a height difference of 570m and takes 3.5 hours. We strongly recommend appropriate shoes and clothing for this trip.