august, 2019 Humboldt Bay Marathon 11augalldayFeaturedHumboldt Bay MarathonHumboldt Marathon Event DetailsHumboldt Bay Marathon The 5th Annual Humboldt Bay Marathon and Half Marathon Sponsored by HPRC. 5K and Marina Mile Races more Event Details Humboldt Bay Marathon The 5th Annual Humboldt Bay Marathon and Half Marathon Sponsored by HPRC. 5K and Marina Mile Races *** VHF Communicators Needed! *** Download The Map! TimeAll Day (Sunday) Learn More CalendarGoogleCal Leave a Reply Cancel replyYou must be logged in to post a comment.