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Deterring Sea Lions in Newport Harbor

Boaters and community members share Newport Harbor with sea life, including sea lions. However, rules are in place that require boat and dock owners to install and maintain effective and humane deterrents to prevent sea lions from making themselves at home on vessels and structures. 

All mooring permittees and dock owners must regularly check to make sure their deterrent measures are in place and are effectively preventing sea lions from boarding. These efforts protect the harbor from property damage, noise disruption, possible pollution or harbor safety issues. These animals are protected as part of the Federal Marine Mammal Protection Act (MMPA) therefore, boaters and property owners must only use deterrents that will not injure or otherwise harm the sea lions.


Additional Resources

Below, you will find some information and resources regarding sea lions and various deterrent methods:


Deterrent Products and Local Services Providers 

There are products and services providers available for hire to assist with sea lion abatement. A few of these are listed below (these listings are not an endorsement by the City of Newport Beach)

  • Seal Stop  949-607-7050 or visit
  • South Mooring  949-645-0334 



Humane deterrents are required to prevent sea lions from making themselves at home. Newport Beach Municipal Code Advisory


Need to report a sea lion on a boat or dock?

Call the Harbor Department at 949-270-8159. Please be prepared with a location or mooring number.

Office Location:

Marina Park Community and 
Sailing Center

1600 W. Balboa Boulevard
Newport Beach, CA 92663
33.607310, -117.922141

Office Hours: 8 a.m. - 6 p.m.

Contact Us:

949-270-8159 | VHF Channel 19

After Hours Emergencies Only:
949-270-8159 and press "0"
Note: Mooring assignments are not handled after hours. Visitors should check in with the Harbor Department at 8 a.m. to rent a mooring.