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Annual Grunion Run Events Offer Nighttime Adventure at Bolsa Chica State Beach

Annual Grunion Run Events Offer Nighttime Adventure at Bolsa Chica State Beach

HUNTINGTON BEACH, CA – Enthusiasts are invited to partake in the mysterious and captivating phenomenon known as the Grunion Run. Organized by the state park authorities at Bolsa Chica State Beach, these monthly events promise participants an unforgettable nocturnal experience along the picturesque coastline.


Grunion, small silvery fish native to the coast of California, embark on their remarkable spawning ritual under the cover of darkness. The Grunion Run, occurring during the spring and summer months, marks the time when the creatures make their journey from the ocean to the shore to lay their eggs in the sand.


The Bolsa Chica State Beach Visitor Center will serve as the rendezvous point for these immersive excursions. Led by knowledgeable state park staff, registered participants will embark on a guided exploration of the beach after curfew. Prior to setting out on their adventure, attendees will be treated to an presentation shedding light on the life cycle and behaviors of the grunion.


To ensure a safe and enjoyable experience, participation in Grunion Run events requires advance registration. Those interested in joining these unique nighttime outings are urged to RSVP promptly, as space is limited. Reservations can be made by contacting Elizabeth Bailey at Elizabeth.Bailey@parks.ca.gov.


Upcoming Grunion Run Event Schedule:

  • Friday, May 10, 11:00 p.m.
  • Saturday, June 8, 10:30 p.m.
  • Monday, July 22, 10:00 p.m.
  • Tuesday, August 6, 10:30 p.m.

Grunion runs provide a rare opportunity for individuals of all ages to witness nature’s spectacle firsthand. However, it’s crucial to approach these events with mindfulness and respect for the environment. To safely participate:

  1. Respect curfew: Adhere to all park regulations and curfew times to avoid any disturbances to wildlife or nesting habitats.
  2. Stay with the group: Follow the guidance of park staff and remain with the organized group throughout the duration of the event.
  3. Leave no trace: Help preserve the beach ecosystem by refraining from littering and disturbing natural habitats.
  4. Observe from a distance: While observing grunion spawning, maintain a respectful distance and avoid interfering with their natural behavior.

By following these guidelines, attendees can contribute to conservation efforts and ensure the continued enjoyment of grunion runs for generations to come along the shores of Bolsa Chica State Beach.

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