Brittany Ferries strike continues despite weekend talks
Sailings between south and south-west England and France and Spain remain suspended indefinitely, according to a new statement from Brittany Ferries.
Services were halted on Thursday after French crew members took strike action over proposed changes to their working terms and conditions.
Brittany Ferries said despite "constructive" talks at the weekend, no agreement had yet been reached.
Passengers are being advised to travel to Dover or Calais.
The only route unaffected by the industrial action is the Poole-Cherbourg passenger service, which is operated by Condor Ferries on behalf of Brittany Ferries.
"Because of this indefinite stoppage Brittany Ferries is recommending customers to travel to Dover where they currently have special arrangements in place with P&O Ferries and MyFerryLink to accept Brittany Ferries' tickets," the statement said.
"A full refund will, of course, be given for the unused Brittany Ferries crossings."
However, the alternative being offered by the ferry company has not been welcomed by some passengers.
Roger Richards from Camborne in Cornwall said he and his wife went to Roscoff, Brittany, for a "quick trip", but they now feel they are trapped.
"I can't drive very far because of a medical condition and I can't walk anywhere," he told BBC News.
"We're virtually stuck in the hotel... and now the weather's changed and we didn't even bring coats with us."
The company said it very much regretted the effect the disruption was having on customers, adding that it was working hard to reach a "swift end" to the dispute.
Passengers have been asked not to contact the company by telephone, but to visit its website for the latest information.
The company is trying to reduce costs following three years of losses.