Watch the ocean expedition livestream August 2025/September

#ONCabyss Summer 2025 Expedition leg 2

What are #ONCabyss ocean expeditions and why are they conducted?

What vessels and technologies are used during #ONCabyss expeditions?

Where can I find data collected during an #ONCabyss expedition?

How can students or educators get involved in ONC expeditions?

SeaTube is a sophisticated video annotation system for archived or real-time/live streaming video.



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Video Annotations & Archiving

Explore the deep ocean with us! Learn more about past #ONCabyss expeditions.


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Past Expeditions

ONC’s real-time ocean data tracks tsunami after earthquake off Russia

Our ocean expeditions conduct vital maintenance of our expanding ocean observatories, support surveys & gather ocean samples.


Join us virtually live onboard while we maintain and upgrade the Internet-connected ocean! 



Live Expeditions

Expeditions

ROV Mantis being hoisted in the air before deployment

#ONCabyss ocean expeditions are scientific missions that support the maintenance and enhancement of Ocean Network Canada’s cabled major ocean observatories. These missions include the deployment and replacement of instruments as well as scientific sampling, and are conducted annually during spring, summer and fall. ONC observatories provide continuous monitoring of the ocean and seafloor, allowing real-time [data collection](https://www.oceannetworks.ca/data/) on marine life, climate change, and geohazards.

ONC charters vessels from organizations including the Canadian Coast Guard, Canpac Marine Services, and Ocean Exploration Trust for offshore maintenance of our cabled seafloor observatories. Technologies like remote-operated vehicles (ROVs), underwater cameras, hydrophones, and environmental sensors are used to monitor oceanographic conditions.

Expedition ROV footage and data from newly deployed instruments are accessible via the [Oceans 3.0 Data Portal](https://data.oceannetworks.ca/). Expedition news stories and highlights can be found on the [ONC website](https://www.oceannetworks.ca/news-and-stories/stories/). Past expeditions can be viewed on [Seatube](https://data.oceannetworks.ca/ExpeditionManagement).

Ask your questions directly to our experts! ONC’s [Ship2Shore program](https://www.oceannetworks.ca/learning/youth-programs-k-12/annual-events/) oﬀers formal and informal educators, students, and the public the opportunity to connect with ONC during at-sea expeditions. Using video conferencing, participants onshore can connect live with scientists, engineers, and ship crew to discuss ocean science, technology, and life at sea.

Ship2Shore interactions typically take place between May and September. **For more information about these events or to get involved, please contact learning@oceannetworks.ca**


ONC 2025 Ocean Expeditions

Expedition FAQs