• At 120,000sq ft GeoLagoon would be one the world’s largest man-made hot bathing pools, although there are bigger naturally-formed thermal lakes
• Bear Lake in Romania is a heliothermic lake covering 430,556sq ft. It’s heated by the sun and maintains this warmth due to the composition of its saline waters
• Frying Pan Lake in New Zealand measures 409,029sq ft, but at 50-60˚C is too hot for bathing in
• Lake Hévíz in Hungary is reported to be the world’s largest swimmable thermal lake covering 511,286sq ft
• Iceland’s Blue Lagoon, one of the most well-known man-made geothermal lakes, is 93,646sq ft