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Cadillac Challenge Century

Cadillac Challenge Century

October 04 2020
Mount Desert Island, Maine, USA

The Cadillac Challenge is a superb day of bicycling on beautiful Mt. Desert Island. Riders will cycle through some of the most spectacular fall foliage scenery that Maine has to offer including mountains, the Atlantic Ocean, Somes Sound, lakes, forests, wetlands, harbor towns, abundant wildlife, and much more. Two ride options of 68 and 100 miles are available to suit varying degrees of fortitude and both include the spectacular roads and scenery of Acadia National Park.

In its twenty-seventh year, "The Cadillac Challenge Century" features 6,950' of climbing and travels just about every road on Mt. Desert Island. After a 87 mile warm-up, you’ll begin the final 3.5 mile, 1,000' climb up Cadillac Mountain. The summit at 1,530’ is the highest point on the eastern coast offering an eagle’s eye view of the Atlantic Ocean, Frenchman’s Bay, Mount Desert Island, and the mainland beyond.

After all the day’s efforts you’ll enjoy the great downhill run to the finish with only one short uphill in the last eight miles. For those that prefer a shorter ride the metric (plus) century route features 5,551’ of climbing over 68 miles and includes the Cadillac Mountain climb. You also won't have to strong arm friends and coworkers for ride pledges or pay an exorbitant entry fee just to go on a bike ride. The Cadillac Challenge is free of charge to all who wish to ride! However, Acadia National Park does charge an entrance fee.

We do cheerfully accept donations to help pay for the food, gasoline for the sag wagon and support staff, and other expenses, but you don't need to donate to ride.

Cadillac Challenge Century

Routes: 68, 100 miles
Difficulty of Greatest Route: D - Difficult terrain with longer, steeper hills
Entry Limit: none
Time Zone: Eastern Standard Time (EST)
Start Times / Itinerary

The Cadillac Challenge is a "show up and ride" event on the 1st Sunday in October. It starts and ends at the MDI High School in Bar Harbor. There are 68 and 100 mile routes around scenic Mount Desert Island and Acadia National Park, culminating with a ride up Cadillac Mountain before returning to the high school. 

The are no fees or preregistration, but we accept voluntary donations to help cover expenses including 4 well stocked rest stop. Registration starts at 7:00a, and the ride goes off at 8:00a, rain or shine.


Free, donations are accepted. We provide rest stops and food.

What's Included?

We provide food, gatorade, and water at 4 rest stops

Packet Pickups

Pick up cue sheet at start or print off from website

Free Parking
Registration/Entry On the Day
Support for Participants
Route Signposted
Route Card
Emergency Contact No
SAG Wagon
Feed / Aid Stations
Event Size
Less Than 500 Riders
Start Address: Mount Desert Island High School, Mount Desert Island, Maine
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Tag: cadillacchallengecentury,afreecenturyrideonmountdesertisland
Oct 04 2020 - EVENT: Cadillac Challenge Century