Avanto Architects completes Loyly Sauna as part of Helsinki Coastal park in Finland A public sauna along with the Helsinki coastline named “Loyly” and designed by local studio Avanto Architects. The architectural concept of Loyly Sauna is simple: a free form wooden “cloak” covered a rectangular black box that containing the warm spaces. See slideshow of Loyly sauna architecture project: Sauna bathing is an essential part ...