HKWorkoutActivityType.waterFitness The constant for aerobic exercise performed in shallow water. Declarationcase waterFitness See AlsoWater activitiesHKWorkoutActivityType.paddleSportsHKWorkoutActivityType.rowingHKWorkoutActivityType.sailingHKWorkoutActivityType.surfingSportsHKWorkoutActivityType.swimmingHKWorkoutActivityType.underwaterDivingHKWorkoutActivityType.waterPoloHKWorkoutActivityType.waterSports