Fartlek on the Beach

Today was one of the better and more fun workouts I've had in awhile.  I walked three miles on the beach all in one direction.  I ran two of the three miles back in a modified fartlek style where I walked the recovery periods.  Running segments were between .1 and .2 miles.  Actual time spent running was 15:19 (7:44, 7:35).  Mark says running barefoot on sand is a bit slower than running with shoes on the road so the times are better than they look.