Summer Rentals
Summer in Island Park is breathtaking - and one good way to get out into nature, is to be on an ATV.  From moose to deer and maybe an occasional black bear - there's tons to be seen.  Many old forest service roads are accessible by ATV and even the old Railroad bed is designated to this type of travel.  We do our best to get you on the correct trails - NO HIGHWAY TRAVEL ALLOWED!
*ATV (single seaters) rentals are $119.00 per day (we provide one helmet per rental) 8-5 pm
* RHINO (seats 2 adults/2 children) rentals are $220.00 per day (helmets provided) 8-5 pm
When operating any of these units, helmets and a valid drivers license are mandatory.
ABSOLUTELY NO EXCEPTIONS!
Additional helmets are available for $5.00 each.
ATV's and RHINO 8am - 5pm
Island Park has a beautiful and prestine reservoir.  Our units are docked on the water at Lakeside LodgeNo trailering is involved - just hop on and go.  Life vests are complimentary to accommodate your rental ~ additional vests are available for $5.00 each.

*Our Jet Skis are 1000cc, environmental friendly 4-stroke, YAMAHA FX Cruiser three seaters.  These can pull a tube, knee board, wakeboard or skier.
Jet Ski rentals are $189.00 per day - from 9am to 6pm.

*We have a 20' Glastron.  This is a great all around fishing or ski boat.  It can also pull a tube, knee board or wakeboard.
Boat rentals are $275.00 per day - from 9am to 6pm.

*Tubes, wakeboards and water skis can also be rented at our facility.
Prices are as follows:  Kneeboard $25.00, Wakeboard $35.00,
Water Skis $35.00, Towable Tubes $40.00 
Jet Skis and Boat's 9am - 6pm
Rubber Rafts
Want to take a nice relaxing float along the Buffalo River or Big Springs?  This is an extremely popular activity in Island Park.  You won't find a lot of white water rafting on these rivers -
most waters take it nice and slow.
Mountain Mayhem makes it easy with our 6-man rubber rafts.
Rafts rent for $59.00 per day - 9am to 6pm
We do not provide a shuttle service, so make sure you make the proper arrangements.
Make your reservations today!  We'll help make your visit to Island Park a very special one.
You can email us at mountainmayhem@fairpoint.net
for inquiries, and we will respond to you as soon as possible - but it is much faster
to make your reservation by calling us at 208-558-7390.
Our 24' pontoon boat is great for pleasure rides with family and friends (holds up to 15 people) - or entertaining. Tow a tube or two, jump into the water for a swim, go fishing and then have a BBQ.  The large flat area allows kids and adults to move around freely without any restrictions. Our pontoons allow you to pull into any beach or bay at a whim, easy to park and play.
2009 Fisher rents for $400.00 - from 9am to 6pm
2000 Landau rents for $250.00 - from 9am to 6pm
Pontoon Boat - "The Party Barge"
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Aqua Tramp
EXCITED to add the ever famous "WATER TRAMPOLINES"
to our ever growing rental fun fleet.
Also located at Lakeside Lodge, these can be towed to your waterfront property (on Island Park Reservoir) for days and days of fun.
Perfect for family reunions and other get togethers.  Of course, we
advise the use of common safety practices when using any of the water trampoline and water sports equipment
Contact us today, for rates and more information at 208-558-7390.