Let's hit the trail! Run the historic Griffith Park trail on February 5th, 2023 for the Run GPR Half Marathon and 5K sponsored by REI and benefitting The Los Angeles Parks Foundation. Run/walk through the flat compact trails and rolling hills while taking in the spectacular views of the foothills and nature all around us here in LA! REI is happy to support The Los Angeles Parks Foundation that has raised over $42 million to fund capital projects, programs and initiatives that improve access to public parks and recreation for underserved communities, promote environmental sustainability, and preserve our public parks for future generations.