No. Although the thigh monitor can be left on for showers, both devices need to be removed to prevent immersion in water e.g. bathing or swimming. If you plan to go swimming more than three times during the 7 day study period, or to do more than three intense workouts (sweat can cause the adhesive patch to detach), please let us know so we can include extra adhesive patches.  Please contact the ABC Study team on 1800 688 419 (free call within Australia) or info@abcstudy.com.au