Welcome to Bay Trailrunners Napa Wilderness Trail Runs at Skyline Wilderness Park. This new location for Bay Trailrunners offers something for every level of trail running from Ultra Marathon for the more advanced runner or a 10k for someone just getting into the sport or those just coming back to it. Our half marathon is perfect training for those looking to up their game a little and have 3 options for you on the half. Early start or for a twist a new 11:45 am late start for those that aren't early risers. Last we are offering the Cray Double Half, you get to run them both and get rewarded with a special swag item.

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