Hundreds of climate activists gathered around the Kinder Morgan facility in Burnaby on land and on the water.
The protest was part of a world wide-event called "Break Free" which included actions against fossil fuel projects in 12 countries.
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Melina Laboucan-Massimo is a climate and energy campaigner with Greenpeace and was among those who marched to Kinder Morgan's Bunaby terminal on Saturday.
"We're sending a message to Prime Minister Trudeau that we need to keep fossil fuels in the ground, that we need to continue to transition to renewable energy sources," she said.
Meanwhile in a statement Trans Mountain says it, "understands and appreciates that there are a variety of opinions about our proposed expansion project and we respect the right to peacefully demonstrate and express those views.
"There were no interruptions to safe operations as a result of [Saturday's] demonstrators."
The federal government is expected to announce its decision on the Trans Mountain pipeline in December.
Meanwhile on Saturday other protesters joined Green MP Elizabeth May at another "Break Free" event at O'Siyam Pavilion Park, in Squamish.
They were protesting the Woodfibre LNG project which has cleared a federal environmental review, subject to conditions.
Squamish crowd rocking out to "I Want to Break Free" pic.twitter.com/bZDCE1UFUv— @SkeenaWatershed
A prior version of this story said that the federal government is expected to announce its decision on the Trans Mountain pipeline in August. In fact, the government has extended its time frame by four months and will now announce its decision in December.May 15, 2016 12:37 PM PT