A sauna and sauna lake (nude areas) in the Carolus Therme day spa in Aachen, Germany.
© Olaf Rohl
About the Author
Henk Bekker is a European travel writer specializing in transportation, cultural destinations, and practical travel advice for visitors to Europe. His work focuses on clear, up-to-date guides that simplify complex travel systems such as public transportation, tickets, and routes.
More about Henk Bekker and his travel websites