Warm up
1 x 600: 300 free/300 non-free
600
Main
3 times through:
1 x 6:00 swim (count your laps!)
60 sec vertical kick
6 x 1:00 swims
60 sec vertical kick
With each 6:00 swim, try to go a little further
Last thing: Count your strokes up to 60 and see where you end up in the pool...how far did you make it?