My hovercraft is full of eels

Alle terme Rudas di Budapest
- Hello, how can I help you?
- I'd like to swim in the termal bath
- Okey.
- Can I rent the swimming suit?
- Pardon?
- Can I rent the swimming suit and the towel? I don't have them
- Actually you don't need them
- Why?
- The only thing that you need is...your body!