The mineral water spring in village of Obedinenie (Veliko Tarnovo district), is included in the list of mineral water springs - exclusive state ownership. The first drilling happened in 1971. The water springs out from a depth of 1250m, and has a hyper-thermal origin and temperature of 43?C with a slight alkaline reaction.

The local people voluntary cast concrete basins for open air water procedures. The official opening was performed in 1986. The water has a very favorable mineralization and is preferred when healing a number of diseases of the bones and joints, of the peripheral nervous system, of the digestive system, for immune system strengthening.