8 x 25 Sighting for open water practice, Like heads up freestyle
200 Lift your head up after every 5-10 strokes to pretend you are in an open water event looking for the next buoy.
15 Seconds Rest
= 400 yds
Main Set
4 x 400
Get out of the pool after each one and do two sets of 25 abs of your choice
The intention of this is to mimic an open water swim and the effort of getting out of the water immediately to run to the finish. Pace yourself throughout the entire set.