Workout

Warm up (1000)
Drill, Kick, Swim 1000 IM
...reverse IM order
(Free, Breast Back, Fly)
 …100 drill, 100 kick, 50 swim

Set (400)
Swim 8 x 50's on 1:00 
...descend 1-4
...to 90% effort 

Set (200)
Swim EZ 200 
…DPS

Set (400)
Swim 4 x 100's choice on 2:00
...75% pace

Cool down (200)
200 choice 
...Moderate to EZ