Niihaman Ulkoilumaja is an outdoor lodge on lake Niihamajärvi along the Kauppi trails, where the wood-heated cottage sauna of a post-war family farm has been renovated for public and private use. Public sessions run Tuesday to Thursday 4 to 7 PM for EUR 8; they are mixed and swimsuits are required. A lit path leads to the lake for a swim, with ice swimming in winter. Groups of up to 10 can hire the sauna from EUR 160 for two hours, and Sauna Kata runs traditional sauna ceremonies.