“Sharing the Road” with Marine Mammals



Humpback Whale (Delta/Dawn) breaching in Sacramento River S. Wilkin/NOAA OPR


Each winter and spring, gray whales migrate near shore between Arctic feeding and Mexican breeding grounds.  In spring, especially, gray whales wander into San Francisco Bay, San Diego’s Mission Bay, and into Tomales Bay – a shallow arm of Gulf of the Farallones National Marine Sanctuary.

While here they face dangers from disturbance, shipstrike, disorientation, entanglement in fishing gear, stress from harassment, and skin disease.

To prevent disturbance, the Farallones National Marine Sanctuary advises watching for a whale’s blow, or exhalation, which looks like a puff of smoke. Humpback and gray whale blows are bushy, and rise to about 10 feet. Be aware there may be whales nearby that you do not see!

Boaters, including paddle boarders and kayakers, should not:

  • Approach a whale within 300 feet (the length of a football field);
  • Cut across its path,
  • Make sudden speed or directional changes, or
  • Get between a cow and her calf: if separated, the calf could starve.

Remember: Marine mammals – whales, dolphins, porpoise, seals, sea lions and otters – are covered under the Marine Mammal Protection Act, and some, additionally, under the Endangered Species Act. Disturbance to them could result in significant fines and penalties.

Entangled whales should be reported immediately to the National Oceanic and Atmospheric Administration (NOAA’s) Whale Entanglement Hotline: 1-877-SOS-WHALE.  

Never attempt to free a whale yourself. Injured marine mammals should be reported to the Marine Wildlife Rescue regional agencies.  Check this information at http://www.dbw.parks.ca.gov/Environmental/CleanGreen/BoatersAnglers.aspx (under EMERGENCY CONTACTS - MARINE WILDLIFE RESCUE).

Should you have an encounter with marine mammals, make sure you “share the road” and maintain a respectful distance from our amazing marine wildlife.

Watch this great video about whale watching tips for boaters: http://oceantoday.noaa.gov/watchoutforspouts/


Be a clean & green boater | Top 10 Boating Tips | Marina Oil/Sewage Services | Dockwalkers' Program
CCBN | Shop Clean & Green | Water Quality Programs | Used Oil Collection Centers | Clean Boating Links

Contact Us | Public Education Program | CCC Home Page

California Coastal Commission Logo                          California Division of Boating and Waterways logo