Since TrainingPeaks doesn't differentiate between open water and pool swims most devices including Garmin watches, only support importing structured workouts from TP in Pool swim mode. Seems to me we are missing a trick as the pool environment is already structured! Set distances, pool clock etc., and many swimmers (and coaches) prefer not to use a watch in the pool. However, when we go out outside, we lose the wall clock and the lap lengths. To avoid the common trap of falling into “mono-speed” swimming we still need to provide structure. I do this by setting the intervals on duration (time), not distance. There is one device I know (Platysen Marlin) that will import the structured workout as an Open Water swim if "OW" is in the workout title in TP. Another option would be for a "Garmin" user to swim in pool mode in the open water but they would lose all the OW session data which is pretty much a deal breaker.