Momin Prohod Spa Resort is a quarter of the town of Kostenets. It is situated at the foot of Rila Mountain, about 75 km southeast of Sofia, near Belovo and Septemvri.
The spa resort of Momin Prohod is proved specialized centre for rehabilitation and recreation and attracts many visitors. From times immemorial the present Kostenetz quarter has been renowned for its spas which have been used from Roman times. Now the mineral water of 9 natural springs is collected in one catchment with a temperature of 56oC.
The climate is Temperate Continental. The abundance of mineral springs is one of the special characteristics of the region. The favourable climatic factors, the unique combination of the thermal mineral water resources with the immediate proximity to the resort of Borovets and the country's capital, and the natural and historical sights provide a potential for all-the-year-round tourism, recreation and sport.
The water of Momin Prohod is second to that of the Narechenski Bani spa in its radioactivity, third in Europe and 25 th in the world. Its fame Momin Prohod owes to the achievements of the local specialists in the healing of diseases of the respiratory, the cardiovascular, the nervous and the digestive systems, of metabolic and different kinds of allergic conditions.
Specialists have provided the favourable influence of the rich in radon mineral waters on diseases of the cardiovascular system. The rich in radon mineral water of Momin Prohod is successfully applied for the treatment of skin diseases, light forms of diabetes, obesity and joint disturbance.
In the town of Kostenets there are many Christian temples and chapels of historical and cultural value: the church of “St. Georgi”, and the chapels “St. Illia”, “St. Petka”, “St. Pantaleimon”.
There are 36 preserved burial mounds, 20 mound necropolises, remains of 11 antique settlements and settlements of the Bronze Age and the early and late Iron Age, 6 Roman settlements and 8 late medieval settlements in the region of Kostenets.
The Trayanovi Vrata Fortress is a valuable monument of the Roman age, and of the First and the Second Bulgarian Kingdom. There in 986 the Bulgarian king Samuil defeated the Byzantine emperor Vasilius II.
The spa resorts Villas Kostenets, Pchelinski bani, and the village of Kostenets are near the town. Very beautiful is the Kostenski Waterfall, located near the village of Kostenets and depicted by the eminent Bulgarian writer Ivan Vazov. Only 28 km west of the town of Kostenets is situated the winter resort of Borovets.