Aurora Expeditions Hits Key Biofuel Milestone

Aurora Expeditions has reached a major milestone in its sustainability strategy by completing its first biofuel trial, moving closer to significantly reducing greenhouse gas emissions across its fleet.

“Operating in some of the world’s most climate-sensitive regions, we recognize that reducing emissions is one of our most urgent responsibilities,” said Sasha Buch, Aurora Expeditions’ Sustainability Manager. “This first biofuel trial has provided valuable insights that will guide future testing and support the broader adoption of sustainable fuels in the maritime sector.”

The company’s Infinity-class vessel Sylvia Earle was the first to trial hydrotreated vegetable oil (HVO), a sustainable biofuel made entirely from used cooking oil. In May 2025, the ship bunkered HVO in Valencia, Spain, and ran on 100% biofuel for several days along the Spanish coastline. According to Aurora, certification under strict environmental standards estimated a 90% reduction in fuel-related greenhouse gas emissions compared with conventional marine fuel.

Aurora Expeditions, known for its small-ship voyages to polar and remote destinations, currently operates the Greg Mortimer alongside Sylvia Earle. A third vessel, Douglas Mawson, is slated to debut in December 2025.

This biofuel trial is part of Aurora’s broader efforts to adopt cleaner technologies and minimize its environmental footprint in regions like Antarctica and the Arctic. The insights gained from the HVO test will shape future fuel choices and position Aurora as a leader in sustainable expedition cruising, underscoring its commitment to protecting the fragile ecosystems it explores.

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