The town's coat-of-arms bears the motto 'Per Mare Per Ecclesiam' which translates into 'By the Sea and By the Church', reflecting Southend's historic position between the Church at (Click link for more info and facts about Prittlewell) Prittlewell and the sea as in the (The longest river in England; flows eastward through London to the North Sea) Thames estuary.
Chameleon said:Brighton's motto from the coat of arms is
"INTER UNDAS ET COLLES FLOREMUS"
"between downs and sea we flourish"