Beach Road, St Osyth, Clacton-on-Sea, England. About 40 minutes drive from Alto Sax Naturist Centre and the town of Dunmow in Essex, the beach is noit far from Clacton on Sea in East Essex. There used to be a road down to the naturist beach, but not anymore. Mar 28, - St Osyth near Clacton isn't the easiest naturist beach to get to, but it is for us the closest. After a journey of about 40 minutes, we parked the car.