Before you arrive

Nothing,
is the short answer.

This is the long one, including the two things people always wish they had brought.

The list

Everything
on one page.

What we provide: Robes, slippers, towels, and a paper kimono for the hammam. Lockers are key-coded. Herbal tea, water, and a light lunch on day passes.
Swimwear: Welcome but not required for single bookings. Required for couples, groups, and private hire. Bring it if you would rather have it.
The two things people wish they had brought: A hair tie, and something to read. The library has books but they are mostly in Greek.
What to leave at home: Jewellery — the hammam floor is heated marble and metal gets hot. Valuables generally; the lockers are secure but the road is long.
Contact lenses: Take them out before the hammam. The steam is heavy and forty minutes is a long time.

What you are handed

Also worth reading