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In this picture taken on Thursday, Jan. 14, 2016, lights shining in a thermal pool reflect on a glass ceiling, in a newly opened thermal bath and spa complex in Balotesti commune, north of Bucharest, Romania. Austrian A-Heat Group has opened a giant thermal bath and spa complex in Romania which it says is the largest in Europe. The facility, offering indoor and outdoor pools, saunas and other leisure activities, covers 25-hectares (62 acres). (AP Photo/Andreea Alexandru) ROMANIA OUT Image Credit: AP

Austria’s A-Heat Group has opened a giant thermal bath-and-spa complex in Romania that it says is the largest in Europe.

The 50 million-euro ($55 million; Dh199.61 million) centre, which opened on Thursday just north of Bucharest, uses hot water pumped up from more than 3 kilometres (1.9 miles) underground and cooled to a constant 33 degrees Celsius (91.4 Fahrenheit) in its eight pools.

The facility, which offers indoor and outdoor pools, saunas and other leisure activities, covers 25 hectares (62 acres) and includes a giant botanical garden with 800,000 trees and plants. Tickets start at 39 lei ($9.50).