BC Ferries cancelled more sailings on the Tsawwassen to Swartz Bay route Saturday due to mechanical issues on the Queen of New Westminster.
The problems started Friday afternoon, forcing BC Ferries to cancel several sailings just as motorists geared up for long weekend travel.
"We've had a team of engineers working overtime on the vessel but unfortunately we haven't rectified the problem with the seawater cooling system for the generators," said spokesperson Deborah Marshall.
The 12 p.m. PT Tsawwassen to Swartz Bay sailing was cancelled, as was the corresponding 2 p.m. sailing from Swartz Bay to Tsawwassen.
"Typically on a long weekend we do have heavy traffic out of our Tsawwassen terminal on Saturday mornings," Marshall said.
"What customers might want to consider if they're travelling without a reservation is to travel between Tsawwassen and Duke Point, or use the Departure Bay-Horseshoe Bay terminal."
There were one-sailing waits on the route for much of the day, but traffic eased by late Saturday afternoon.
Long weekend travellers also saw long lineups at southbound border crossings.
Early in the day, waits at the Pacific Highway and Peace Arch crossings were estimated at about 90 minutes, but eased down to about half an hour later in the day.