The Upper Level at The Diplomat Health Club

The Upper Level sits above The Diplomat Health Club, a Grand Rapids sauna and bathhouse that has operated at 2324 Division Avenue South since 1980. While the club below is a private gay men's bathhouse, the Upper Level rooms are explicitly gender-fluid - the FAQ confirms guest ID is checked only to verify age, not gender or orientation - making it a distinct alternative-adult-stay option for swingers and couples of all genders passing through Michigan. Three overnight rooms are available: the Master Suite ($159), the Retro Room ($129), and the Loft Room ($119), each priced for one guest with a $39 upcharge to add a second person and a flat $20 cleaning fee per stay. Unlike the club's day rooms and lockers, which are first-come-first-served, the Upper Level rooms are the only accommodations that can be reserved ahead of time, booked directly by email, with day-pass access to the club's amenities bundled into the room rate. Check-in runs from 3pm with check-out by 11am the next day. Guests must be 21 or older and present a valid credit card matching their state or federal photo ID. Nudity is permitted inside a rented room but not in the shared common areas, and each room is limited to one or two occupants, with a single additional guest allowed up from the main club floor for the $39 fee.