Bike Hill Repeats
MS: Then 8x2' up a hill at 65-70 RPMS. Recover on the downhills. HR on the uphills can hit low Z4. Keep HR in Zone 1-2 otherwise.
WU: Swim 4 laps (200 yds) warm up.
MS: The next set will be 10 x 50 on 30" rest. This means 50 yards sprint, 10x, each time with 30 seconds rest when you finish. Then swim 200 yards of drills (mix it up) and then swim 4x 25 yards fast with 15" rest.
CD: Then swim 100 yards easy cool down.