Spa bath

A spa bath is an activity in The Sims: Superstar and The Sims 4: Spa Day.

The Sims: Superstar
Spa baths are done in the Ponce de Leon Tub, which can be placed on both residential and community lots. Baths are free on residential lots, while a §100 fee is charged when used on a community lot. Sims can choose from a Mud Bath, a Milk Bath, or a Sulfur Bath. Sims will change into their swimsuits before entering, although very outgoing Sims will get in naked. Whilst in the tub, Sims will flex and relax as their comfort motives increase. If there are other Sims using spa objects in the same room, they will start a conversation. When a Sim is finished, they will scrub themselves before exiting and draining the tub.

The Sims 4: Spa Daya
and also it is avable on mod the sims for the sims 3