This 22-day #ONCAbyss Summer 2023 Expedition aboard the exploration vessel (E/V) Nautilus marks the seventh year of partnership between ONC and Ocean Exploration Trust (OET). This expedition maintained and expanded the underwater cabled NEPTUNE observatory located off the west coast of Vancouver Island.

Ocean enthusiasts all over the world remotely joined the deep-sea exploration of this underwater world illuminated by remotely operated vehicles (ROVs) Hercules and Atalanta. Viewers also had a topside view to watch the dive mobilizations, and the opportunity to connect directly with the team through livestream events.