Coach passengers arriving at Dover for the Easter getaway face lengthy waits despite extra ferries being laid on overnight to clear a backlog.
Ednews reports citing foreign media that some passengers who arrived on Saturday were still stuck on Sunday morning.
The port said it estimated waits of between six and eight hours for coach passengers, depending on the ferry operator.
Officials cite slower border processing and a higher-than-expected number of coaches as causes of the delays.
The disruption at Dover began on Friday night and continued throughout Saturday.
On Sunday morning, the port said roads to the port had been cleared and cars were taking around one hour to get through - but coach passengers remain particularly badly affected. P&O Ferries said coaches were being sent to a "buffer zone" to wait before heading to the port.
Some coach passengers have provided BBC News with descriptions of travel "carnage", and said they had waited for as long as 14 hours to board a ferry to France.
Holidaymaker Jennifer Fee said on Saturday evening that her coach was "turning around and going back to London" having been told there was "no chance of a ferry today".
Ms Fee sent BBC News footage of passengers camped out on the floor of a service station in nearby Folkestone - where coaches had been "stacked up" due to delays at the port.