Skip to main content
Kids jumping in the mud at the Mini Mountain Challenge at Sunday River.

Mini Mountain Challenge

Let the Kids Loose

Let the little adventurers loose! The Mini Mountain Challenge is a fun obstacle course for kids ages 4–12, designed to test their grit and keep them smiling.

July 27
10:00 am
South Ridge
Loading...
A little girl receiving her medal after finishing the Mini Mountain Challenge at Sunday River.Kids walking through the mud pit at the Mini Mountain Challenge at Sunday River.Kids leaping into a pile of muddy water at the Mini Mountain Challenge at Sunday River.A kid sliding down a water slide at the Mini Mountain Challenge at Sunday River.
01 / 04

About

Mini Mountain offers a kid-friendly version of Tough Mountain for ages 4-12. It features uphill and downhill running, dirt, mud, fun obstacles, and even snowguns!

The challenges and distances increase for older kids. The event has three heats, and each heat has a course tailored to its age group.

Sign up by May 31st to guarantee a t-shirt!

  • Competitors crossing the finish line at Sunday River's Tough Mountain Challenge.

    Stay Close to the Action

    2025 Tough Mountain Challenge

    Save up to 20% on resort lodging on Tough Mountain Challenge weekend using promo code TMC.

Round out the Weekend

A Look Ahead

© Boyne Resorts 2025