Southend Three Shells is an official estuary bathing water in Essex with a sandy shore. Its water quality was classed Excellent at the Environment Agency's last classification. Water quality here can dip after heavy rain. It is one of 19 designated bathing waters in the county.
For more of the same, Southend Jubilee and Southend Westcliff Bay are close by. The nearest railway station, Southend Central, is under a kilometre away.