The maximum swim speed or resistance varies depending on the specific model and type of swim spa. Hydropool’s resistance swim spas can generate a current with speeds up to 10 km/h, outpacing the average 6.5 km/h offered by other brands. This makes them a great fit for even highly skilled swimmers looking for a challenge. The current is fully adjustable to match your skill level, and if you opt for the AquaPro model, you can even set up interval training programs. These programs automatically vary the current speed, adding a dynamic element to your workouts.