Welcome to Tunnel Marathons! To our participants in the past years of Light at the End of the Tunnel Marathon and especially to our volunteers, we want to extend a big Thank You! Tunnel Light Marathon puts a wrap on 10 years of running the tunnel all on the same fast Boston-qualifying course.
This is a unique course you WON'T find anywhere else. Set in the beautiful North Bend and Snoqualmie area, it features a jaw-dropping 2-mile tunnel cut right through rigid landscape eventually opening to a sprawling Pacific Northwest paradise.