Kent Police issued the fines after two men and two women from the town attempted to cross over to France earlier this week.
Assistant Chief Constable Claire Nix said: “It is very worrying that despite the well-publicised national restrictions and advice, some people still aren’t getting the message.
“Covid-19 remains a deadly threat, one which simply cannot be ignored by those who feel now is the time to hold parties or go on holiday to visit their families in other parts of the world.”
