Half marathoners have 4 miles lined up for Sunday.
Once again, there are '3' ways to approach Sunday's exercise-run, run/walk, or walk.
For run/walk, I'd 'suggest' trying a 3 minute:1 minute run/walk interval. If this is too daunting, dial it back to 1:1. Conversely, if it feels like a cake walk doing 3:1, give 5:1 a shot.
Remember, any running you do should be at 'comfortable, conversational' pace.
Here's a link to course map for those training at the half marathon level-
Sunday Half Marathon Course Map (*Note-you will turn around 2 miles into this course)
We'll do our warmup routine on Crissy Field and then launch our run from the same spot we have previously. This time we will head EAST along the dirt path and head towards the Marina.
You'll run along the dirt path for roughly 3/4 of a mile until you hit the parking lot behind the Little Marina Green. Veer right through the parking lot and head towards Marina Boulevard.
Turn LEFT on Marina Boulevard and continue on Marina Boulevard past the Marina Safeway (this will be on your RIGHT).
When you pass the Marina Safeway, you will see a paved path that heads up Fort Mason Hill. Follow this path uphill until you crest Fort Mason Hill. Run a bit further and look over to your right.
You should see a building on the right on top of the hill. This is a Youth Hostel. Turn around here and head back to where we started for 4 MILES!