The Volga Cave was discovered in 1904 and has been open to visitors since 1919; It is one of the longest cave systems in the country, with a length of more than 31 kilometers and famous for its geological formations and growth; There are year-round rides with temperatures of 11°C and hourly guided tours, plus there is a huge green space outside; It is worth noting that visitors under the age of 5 or less than 115 cm in height are not allowed to enter it.