Route Details


The Tour of the Unknown Coast is sponsored in part by these fine Humboldt County businesses

Supporting Shops

Adventures Edge Bicycles
650 10 Th. St. Arcata, CA. 95521
Phone (707) 822-4673

Adventure's Edge
Eureka, 125 W. 5th St.
Phone: (707) 445-1711

Revolution Bicycle Repair
1360 G St. Arcata, CA 95521
Phone (707) 822-2562

Revolution Bicycle Repair Eureka
2811 F St. Eureka, CA. 95501 Phone (707) 443-9861

Sport & Cycle
475 N Fortuna Blvd, Fortuna, CA 95540 (707) 725-9405

Sport & Cycle
1621 Broadway St, Eureka, CA 95501 (707) 444-9274

Important Details


  • 100 Mile: 7:00 a.m.
  • 100 K: 7:30 a.m
  • 50 Mile: 8:00 a.m.
  • 22.5 Mile: 10:00 a.m.
  • 7.5 Mile: 11:30 a.m.

On-site registration is at the Humboldt County Fairgrounds, 1250 Fifth Street Ferndale, CA, is on Friday, May 18, 5-7pm

Humboldt County Fairgrounds
1250 – 5th Street
Ferndale, CA 95502
Additional Information

Online Registration Closes:
5/18/18 12 Noon

Registration Note:
You’ll still be able to enter in person the evening before and on the morning of the ride.

Tour of the Unknown Coast Century Ride

Riders can expect to experience a variety of weather changes. Inland can be warm, while the higher altitudes can be cold, and the area along the ocean is usually windy. Riders should come prepared. At AW Way Park there is a full lunch provided: Water, fruit, bagels, sandwiches and cookies. This is a rain or shine ride.

Sag Wagons Not Allowed

Please do NOT bring a support vehicle/sag wagon. The additional congestion and pollution are not welcome! There will be ample support and food on the course. Bike mechanics will be available at the start and selected points on all courses. Having people follow you and support you is not necessary or appreciated.

Riders not on pace to finish by 7:00 pm will be sagged in.

General Information

Start Times

  • 100 Mile: 7:00 a.m.
  • 100 K: 7:30 a.m
  • 50 Mile: 8:00 a.m.
  • 22.5 Mile: 10:00 a.m.
  • 7.5 Mile: 11:30 a.m.

Directions to Ride Start

From California Hwy 101, take the Fernbridge/Ferndale exit. Cross Historic Fernbridge & drive through 3 miles of pastoral views to the beginning of Ferndale’s Main Street. When entering Ferndale turn right onto Van Ness St. & go 1/4 mile to the Start/Finish line at the Humboldt County Fairgrounds . The Fernbridge/Ferndale exit is located on Hwy 101 between the cities of Eureka & Fortuna.


  • 100 Mile: $90
  • 100K: $80
  • 50 Mile Challenge: $80

NOTE: All of the above rides include the post ride BBQ meal catered by Blackberry Bramble

  • 22.5 Mile Fun Ride: $30
  • 7.5 Mile Farm Tour $20

$10 Late fee on 100-mile, 100K and 50-mile goes into effect on May 1. There is no late fee for the 22.5-mile or 7.5-mile.

Note: The 7.5 and 22.5 mile rides DO NOT include the post ride meal. Meals will be available at our cost of $15.

Additional Event Information

Ride Includes

  • Milepost Log
  • Tour Patch to Finishers
  • Food at Rest Stops
  • Radio Communications & Support Vehicles on Courses
  • First Aid and Mechanical Support
  • Saturday Meal After Ride
  • Friday Evening Pasta Feed for a Nominal Fee.

Additional Features:

Massage tents and raffle. Order your Raffle tickets now for a bike and other prizes! Tickets are $1.00 each or 6 for $5.00.

Bike Raffle

Tickets: $1.00 each or 6 for $5.00
Trek Bicycle provided by Henderson Center Bicycles, + lots of other cool prizes from our sponsors Kinetic Koffee, Kenda Tires, Rock N Roll chain lube, Hammer Nutrition,

For Your Protection

  • Helmets Are Required
  • All riders will be assigned a number. You must affix it to the front of your bike so it is visible to support personnel.
  • Safety Rules MUST be observed at all times
  • Stop at all stop signs
  • RIDE SINGLE FILE on the right side of the roadway — leave adequate stopping distance between riders
  • Obey all traffic laws
  • Observe good road manners
  • Make sure your bike is in good condition – especially your brakes – especially your brakes
  • All riders MUST carry some form of identification, including your emergency contact phone number. Every minor MUST carry a medical release form signed by parent or guardian. If you have a medical alert bracelet, please wear it.
  • NOTE: Multi-geared bikes strongly recommended. One-speed bikes limited to the 10 mile Farm Tour.
  • Wave to the cows and talk to the giants.

Accident Reporting

All riders are required to report any type of accident or injury to a check point official or radio person. You are responsible for your own medical insurance. Read the Release/Waiver form.

Food & Water

Will be provided for all riders. Major food stops will be at Immortal Tree and A.W. Way Park. There will be some food and water at all Rest Stops and Aid Stations.

Food & Snacks at Rest Stops & Turn Arounds

Fruit (apples, bananas, oranges), Cookies, Bagels (with cream cheese or peanut butter & jelly), Sandwiches, Beverages, Cytomax Drink Mix (fruit, cookies and beverages only at 7.5 & 22.5 mile Rest Stops).


Remember this is a beautiful scenic ride, please NO Litter. Keep your Power Bar wrappers in your pocket.


Patches will be awarded to all riders upon completion of their ride at the Fairgrounds. Our tradition is to give patches to finishers only.