W3/D6 Swim (Workout 2)

WORKOUT Swim 2 x 500 yds/meters. Endurance Swim: 30 minutes You may kick with or without fins Workout Details: Warm-up: - 200 yds @75-84% of Threshold Pace (Zone 1) (100 swim, 100 kick) 2 x 500 at Sprint race pace...keep your HR under control. Rest 1 minute in-between - Hard 500 yds @91-96% of Threshold Pace - Easy 1 min @0% of Threshold Pace (REST) Cool Down: - 100 yds @75-84% of Threshold Pace