|“||And we like to invite you to a free weekend at the Etenal Youth Spa!||„|
|~ Lily and Violet about the Eternal Youth Spa.|
The Eternal Youth Spa is a health resort that was a ploy used by Poison Ivy aided by both her 2 loyal assistants Lily and Violet to exact her fanatic revenge on many wealthy men and women she blamed for ruining some of the Earth's rainforests. It is built by her own company called Demetechnics.
This place was a resort health that is rumored to have a chemical that will give people youthful contents.
But the spa is a trap: Poison Ivy planned to get revenge on wealthy businesspeople who disregarded the environment. By offering them a free treatment at the spa—boasting a new method using Demetrite—she slowly poisoned the guests until they turned to trees.
Batman stopped her and escaped the Eternal Youth Spa which was destroyed by a giant tree that was the result Poison Ivy's Demetrite.