**From the Race Organizer regarding the 2026 race -
"We were recently informed that due to severe storm damage to multiple sections of our race course, we will not be permitted to use the original course for the 2026 Tunnel Marathons... Please know that we are actively working with our permitting agencies to develop an alternative route for the Light at the End of the Tunnel Marathon & Half Marathon, Tunnel Vision Marathon & Half Marathon, and Tunnel Light Marathon & Half Marathon." More Info.
The downhill Tunnel Vision Marathon course is a very fast course and usually one the top Boston Qualifiers. The course is mostly packed gravel on an old railway with an average decline of 2.2%. Runners will also run just over two miles through a tunnel.
The course is also home to the
Tunnel Light and
Light at the End of the Tunnel Marathon.
From race website - The course starts at Hyak, 50 miles east of Seattle Washington, and runs down to North Bend on gravel rail-trails. It is a Boston qualifier and has the best profile in the country for a fast time due to the consistent gentle downhill grade and the low starting elevation. The first three miles are flat, cold, foggy and damp inside an unlit tunnel. Flashlights are strongly recommended. Once out of the Tunnel the gravel trail starts down the hill and keeps on going down, 2050 feet in the next 23 miles. It's never steep enough to be uncomfortable; you just feel like you're having a good day.