.. Getting into the private spa

True. It is a members only area. Would there be another way in, though?

Way to sneak in, perhaps. Through a window, for example. ( Climb on the roof and open the window. )

And you met Humboldt? He is a member of the club but he won't help you.

He is dieting and hungry. He would help you if you get him some food.

Something cats like. Fish-flavored hamburgers. Or hamburger-flavored fish!

Talk to Meowy at Meowy's Mporium. When you promote his shop you will win the prize. It is a bag full of food!

Give the food to Humboldt. He will give you his membership card. Go show the card to Celestine.

You will find the locker rooms when you walk to the right.

Use the locker 9 to insert you stuff there. Then use the slipper and towel to dress for the spa.