The reservoir was intentionally constructed to prevent flooding and to provide cooling water for the region.
The 'Bird Island' (Vtáčí ostrov) located in the reservoir is a legally protected nature reserve due to its importance for nesting waterfowl.
Sĺňava is considered the warmest reservoir in Slovakia due to the local climatic conditions of the Piešťany basin.
The reservoir creates a specific microclimate that influences the surrounding spa park vegetation.
The 12km cycling loop is part of the larger Vážska cyklomagistrála trail network.
Sĺňava Reservoir is a 4.3 square kilometer artificial water body on the Váh River, created between 1956 and 1959. The name Sĺňava is derived from the Slovak word for sun, reflecting its reputation as one of the warmest locations in Slovakia. The reservoir serves as a critical habitat for migratory birds, particularly in the protected 'Ratnovská zátoka' bay. A 12-kilometer circular asphalt path surrounds the reservoir, accommodating cyclists, inline skaters, and pedestrians. The water surface is utilized for water skiing, windsurfing, and rowing activities. Artificial islands within the reservoir serve as nesting grounds for protected bird species, including the common tern and black-headed gull. The dam complex includes a hydroelectric power plant that harnesses the flow of the Váh River.
The western dam wall overlooking the reservoir during sunset.
Bring binoculars to observe nesting bird species on the restricted-access artificial islands.
Rent a bicycle in central Piešťany to complete the full 12-kilometer reservoir loop efficiently.
Visit during the shoulder season to avoid heavy traffic from local inline skaters on the narrow sections of the path.
Attempting to swim in areas not designated as public beaches; straying off the main loop into adjacent marshlands.
Stay on marked cycling and pedestrian paths; do not enter protected nesting zones or bird islands.
