Aquarius Sailing Club is situated on the Middlesex bank of the River Thames, between Molesey and Sunbury locks, 2 miles upstream of Hampton Court and 300 yards upstream of Platt's Eyot.
By road, from Hampton Court or the M3 at Sunbury, the Club is approached along a private drive leading off the Lower Sunbury Road, some half a mile west of the junction of the Upper and Lower Sunbury Roads at Hampton Water Works; Thames Water require the gate to be kept locked so at the entrance there is a phone to the clubhouse.