Trail Run (20 Minutes, Easy to Moderate)
Find a trail (not a road), and go for an easy to moderate run for 20 minutes. Terrain should be easy - a flat or rolling trail, not a steep hike. You should be able to breathe and talk comfortably throughout. Focus on nice, soft footfalls - I try to think of making my steps as quiet as possible.
Go EASY today, even if you want to push. This is the beginning of a LONG haul of training, and we need to build a solid foundation to have our strongest, best results long-term.