Miramar is a water park, salt-water spa and sauna complex opened in 1973 at the Waidsee Lake, Weinheim, Germany.As of 2014, approximately 50% of the 650,000 annual visitors pay extra for the Sauna area.The catchment area for visitors covers a 100 kilometres (60 mi) radius, including Frankfurt am Main to the north, and Pforzheim to the south.