Spoluka (Bulgarian: Сполука) is a village in Ardino Municipality, Kardzhali Province, southern-central Bulgaria.

Anglers often visit the dam as it supports a range of fish species, such as carp, catfish, tolostolob, zander, perch, and rudd.

Nearby, there’s a rock formation known as The Ring, which offers a scenic view of the dam and the surrounding landscape.

Built in the 10th century, this fortress was constructed to safeguard the area around the Arda River in the Eastern Rhodopes.

Notable features include old walls that stand up to 5 meters tall, towers, and the remnants of an ancient church located at its core.