Visit Island Park Idaho - Mountain Mayhem (Island Park Polaris) specializing in recreational vehicle sales, service, snowmobile and ATV rentals and guided tours. An in house espresso bar and gift shop also reside inside Mountain Mayhem. We invented fun! Visit us today! Mountain Mayhem Home
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Located in beautiful Island Park, Idaho - a resort area nestled between two National Parks: Yellowstone and The Grand Tetons.  A great place to play and stay - a destination location!!  Island Park is a year round playground!  Mountain Mayhem, locally owned and operated -  has nearly 20 years of recreational experience to help you get the most out of your vacation.

Our winters receive an average of 227 inches of snowfall, and Island Park has over 500 miles of groomed snowmobile trail.  Mountain Mayhem has over 30 Snowmobile rentals to accommodate the snowmobile enthusiast.  We are also the only place in Island Park that can legally guide you through Caribou/Targhee National Forest. We  have professional guides that can take you from our front door to peaks of over 10,000 feet in mere minutes.

Summers are beautiful with blooming wildflowers, flowing creeks and abundant wildlife.  Hop on one of our ATV rentals and tour the mountainside - or - take one of our Jet Skis, Ski  Boat or Pontoon Boat on a jaunt on the beautiful Island Park Reservoir.  You can find everything you need under one roof, here at Mountain Mayhem.  Visit the gift shop, along with an in house espresso bar and free WIFI to customers.
Island Park is an extraordinary "recreational" paradise -  visit us TODAY!
Formerly:
Island Park Polaris, Inc.
RENTALS - GUIDED TOURS
SERVICE - PARTS
Nearly 20 years of experience & experience counts!!!
Creating wonderful vacation memories since 1995!!
ATV PRE-SEASON SERVICE!!
BEGINNING AT $89.99 + PARTS!!