Join the UltimateSlimetopia

Workshop presented by Challenge Island

A 3-day squishy, stretchy, oozy summer camp for kids ages 5–12 in Maple Valley, WA. Hands-on STEAM from the World's #1 STEAM program — pick your slot below.

Book your spot Call 206-265-1043

Ages 5–12 Maple Valley, WA Only 30 spots/session

Vetted STEAM instructors

Tiny class sizes (max 30)

10+ brand-new slime recipes

Flexible AM / PM / full-day

Choose your slot

Once Upon a Slime

July 7 – 9, 2026

3-day camp at Children's Dance Theater, Maple Valley. Only 30 spots per session — pick the slot that fits your week.

Slimetopia ©

Once Upon a Slime

Storybook adventures, slimified

July 7 – 9, 2026 Ages 5–12

Favorite children's books turned into fantastical slimy adventures. Three days of brand-new slime recipes inspired by the classics — hands-on STEAM your kid will not stop talking about.