Brilliant !
http://www.hotel-vrouwevanstavoren.nl/Engels/indexengels.htm (http://www.hotel-vrouwevanstavoren.nl/Engels/indexengels.htm)
(http://www.hotel-vrouwevanstavoren.nl/Binnenkant%20Wijnvat%202007%20Internet.jpg)
The above reminded me of this, and
the internet do provide.
When I was a teenager, staying on an island off the coast of Finland, I remember using a neighbor's sauna, which looked a lot like one of those wine casks from the outside. If I had a wine cask like that, I would probably convert it to a sauna.
Cool :) Looks like a hobbit hole.