Your hair and everything else will turn green if you swim in here. Released for St. Patrick's Day 2010 this Limited Edition item was available for 15000 c from March 4-19, 2010 and re-released from March 23-26. It gave 150 xp when brought. The description reads "No swimming!"
Clicking on the fountain will cause the leprechaun on it to start spewing the green liquid from its mouth.