Opt Outside Day at Guadalupe River State Park is a Black Friday tradition for anyone who would rather spend the day under the trees than in a crowded store. The event takes over the park near Spring Branch, just outside San Antonio, with plenty of ways to get outside. Hike the trails, relax by the river, go birdwatching, try a nature scavenger hunt, snap some photos and keep an eye out for local wildlife. Pack a picnic and find a spot with a view.