Uchan-Su tumbles 98 meters down the face of the Crimean Mountains just above Yalta — the highest waterfall in Ukraine, though its drama depends entirely on the season. In spring the flow is impressive, crashing into a pool in the gorge below; by late summer it sometimes dries to a thin curtain of spray.
The waterfall is set in forested mountain terrain about 3 km above the city, reachable by road or by hiking path from Yalta. Most visitors come by marshrutka or taxi; the walk up through the forest takes about an hour and is pleasant in its own right. A café near the waterfall serves the usual hot drinks and grilled meats. Above the falls, the road continues up to the Ai-Petri plateau, and you can combine the waterfall visit with the cable car at Miskhor for a full day in the mountains.