To register at Social Hiker, you must join one of our challenges. Visit to select a challenge. Once you've selected a challenge and registration level, you will be returned to to complete the registration.All Six-Pack of Peaks Challenges

If you previously participated in the 2015, 2016 or 2017 SoCal Six-Pack of Peaks Challenge, your username and account is already active here, but you'll need to reset your password the first time you register for a challenge on SocialHiker.