Alerts
Notice for Mariners
Practical information about ONC’s infrastructure including downloadable maps & emergency contact information.

We currently have high-voltage fibre-optic cables, instruments, and infrastructure in place on the seafloor and in the water column. There is a potential impact on fishing activities.

View information on ONC’s physical infrastructure including shore stations, submarine cables, nodes, and instrument systems.

Maps of ONC’s infrastructure have been created for easy access and reference. Orange boxes on each map below indicate documents that are available for download. These PDF documents contain a brief description of ONC’s various infrastructure, the date of latest deployments, a table of coordinates, descriptions for each platform, applicable new cable routes, and instructions on how to obtain more information.

We ask that mariners pay close attention to any Navigation Warnings (NAVWARNS) present on their routes, as well as the nautical charts including all Electronic Navigational Charts and Paper Charts of all scales. We appreciate your cooperation in avoiding these areas.

Downloadable Files

Downloadable files contain information on ONC’s physical subsea infrastructure including latitude and longitude, depth, and cable waypoints. If other formats or information are required, please contact us: gis@oceannetworks.ca


Arctic: Cambridge Bay - September 2022

Arctic: Gascoyne Inlet - April 2020

Barkley Canyon - November 2023

Baynes Sound - October 2023

Campbell River - March 2024

Cascadia Basin - September 2023

China Creek - September 2023

Clayoquot Slope - September 2023

Digby Island - November 2022

Endeavour - November 2023

Folger Passage - September 2023

Hartley Bay - August 2022

Kitamaat Village - November 2022

Middle Valley - November 2019

OBP Deployments WCVI - August 2023

Saanich Inlet - November 2023

Salish Sea Moorings - April 2022

Strait of Georgia - June 2023

Waypoint Files

Waypoint files of ONC infrastructure are provided for users in an open source .GPX format for upload to Electronic Navigational Software (ECS) packages.

Two file types are created for point infrastructure to accommodate most ECS packages. One file is created for cables as routes are handled the same in all systems. Instrument files contain a site identifier, site name, comments (a brief description of the infrastructure), latitude (decimal degrees), longitude (decimal degrees), depth (metres), and the location of the instrument. Cable Route files show cables at all vertices, the Waypoint name (containing the extension identifier Waypoint number), latitude (decimal degrees), and longitude (decimal degrees). Shapefiles available on request.


ONC Instrument Waypoints (CSV)
Updated December 2023

ONC Instrument Waypoints - Nobeltec and Maxsea (GPX)
Updated December 2023

ONC Instrument Waypoints - ECS packages (GPX)
Updated December 2023

ONC Cable Routes - All ECS packages (GPX)
Updated December 2023

24-HR Emergency Contact

In the event of fishing gear entanglement or other emergency incident, please call our 24-hr emergency line: 250-721-7599

Join Our Contact List

We are making a contact list for the fishing community. To be notified by email about our installation, operations and maintenance cruises, please contact us GIS@oceannetworks.ca, and include the following information:

  • Name
  • Fishery participation (i.e., trawl)
  • Vessel name

Your information will remain confidential and your email address will only be used by ONC for updates to operations and laid cable positions.

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#100, 2474 Arbutus Road, Victoria, BC, Canada, V8N 1V8
info@oceannetworks.ca+1 (250) 472-5400
Marine Technology Centre University of Victoria
#106, 9865 West Saanich Road, North Saanich, BC, Canada, V8L 5Y8
info@oceannetworks.ca+1 (250) 472-5400

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