Join us at Generations Park for a hands-on building challenge. Builders will receive a materials kit with the goal is to design a custom carriage that hooks to our gravity-powered zip line track, balances correctly, and moves smoothly.

This is a completely open build. Builders will rely on their own problem-solving skills to test friction and weight distribution, seeing firsthand how different materials change the speed of their carriage.

Event Details

• Date: September 13, 2026

• Time: 1:00 PM (Drop in anytime between 1pm and 4pm. Building and testing takes about an hour.)

• Location: Lathrop Generations Center (Park Pavilion), 450 Spartan Way, Lathrop, CA 95330

• Audience: Grades 3–8 (Younger builders are welcome!)

$15 entry fee includes all building materials and a mini resin animal passenger for the builder to test and take home.

Please note: The $15 entry fee covers one materials kit. If you are bringing multiple children who each want to build, please update the Quantity at checkout. Children may build in groups with one materials kit.