To access swimming pool length from Apple HealthKit, you’ll need to use the HealthKit API within an app that has permission to read your swimming data. Look for the HKWorkoutSwimmingLocationType and HKQuantityTypeIdentifierSwimmingStrokeCount parameters to access metrics related to swimming sessions, including pool length if recorded. Ensure that you have HealthKit permissions enabled in your app settings. You can also use HKWorkout objects to retrieve detailed data from swimming workouts!