
Sweden
Härryda is a municipality in Västra Götaland, immediately east of Gothenburg and home to Landvetter Airport. Its sauna culture serves the commuter and business-travel market with well-equipped leisure-centre facilities. The municipality includes several lakes — Rådasjön and Landvettersjön — that provide outdoor bathing access through the year. Gothenburg's larger sauna venues, including those at Frihamnen and Centralbadet, are within 25 minutes. Swedish etiquette: swimwear in mixed sessions; a practical stop rather than a standalone sauna destination.
Hotel saunas at Radisson Blu Göteborg Landvetter Airport are the primary option. Härryda is the Gothenburg Airport municipality — primarily a transit zone adjacent to the city.
Mostly — practical for airport-adjacent spa use. Gothenburg city (20 km west) has much better options for destination sauna tourism.
Landvetter lake and the surrounding forest support some outdoor bathing and cottage sauna rentals seasonally. Several operators near the lake run summer wood-fired barrel saunas.