This part of the ground floor plan shows the series of small lobbies located between the cooling-room and the hot areas. These are designed to minimise unnecessary heat loss as bathers move from room to room.

Each of the cooling-room doors on either side of the plunge pool leads to a lobby which in turn leads directly to the central lobby. Here is the stepped entrance to the plunge pool and, directly opposite the steps, access to and from the tepidarium, or first hot room.

The lobby entered through the door to the left of the plunge pool also leads—straight ahead—to the tepidarium and—on the left—to the Russian steam room.

The lobby entered through the door to the right of the plunge pool also leads to a further smaller lobby which, in turn, leads to the tepidarium or the shampooing room.

This central area also includes a shower and douche room which can only be accessed from the shampooing room.