Cape Alchak is a broad, rocky headland at the eastern end of Sudak Bay, now a nature reserve with a 3-kilometre circular trail around its perimeter. The walking is easy and the views are excellent in all directions — back toward the Genoese Fortress to the west, out to sea to the south, and along the dramatic cliff coast to the east where the mountains drop directly into the Black Sea.
The cape has a natural sea arch carved into the cliff on its southern face — visible from the water but also reachable on foot from the trail. The waters around the cape are clear and the snorkeling is good in calm weather. The trail takes about an hour at a moderate pace; the limestone rock underfoot can be slippery when wet.