Join Birch Aquarium at Scripps Institution of Oceanography, UC San Diego, for a must-see ocean adventure. From April through mid June, observe the mysterious grunion spawn on the beaches of La Jolla.
On certain spring nights following high tides, hundreds of the small silvery fish ride the waves onto shore for this remarkable mating ritual, which happens only in Southern California. While on the beach, female grunion bury themselves halfway in the sand to lay eggs, while males wrap themselves around the females to fertilize their eggs. Both catch a wave to return to sea.
Birch Aquarium at Scripps naturalists will guide participants through an unforgettable night, starting with an interactive presentation on grunion, followed by a rare opportunity to witness grunion eggs hatch before their eyes. The unique experience continues with a moonlight beach exploration to witness the grunion run, nature willing. Please bring a flashlight and warm jacket. Ages 6+. Ages 6-13 must attend with a paid adult. Grunion runs do not take place at Birch Aquarium. Reservations must be received in advance.
Members: $14, Public: $16
RSVP REQUIRED: 858-534-7336 or online
Tuesday, April 1: 11 p.m. – 1 a.m.
Thursday, April 17: 11 p.m. – 1 a.m.
Friday, May 16: 10:30 p.m. – 12:30 a.m.
Saturday, May 17: 11 p.m. – 1 a.m.
Friday, May 30: 10:30 p.m. – 12:30 a.m.
Saturday, May 31: 11 p.m. – 1 a.m.
Saturday, June 14: 10:30 p.m. – 12:30 a.m.
About Birch Aquarium at Scripps
Birch Aquarium at Scripps is the public exploration center for world-renowned Scripps Institution of Oceanography at UC San Diego. Perched on a bluff overlooking the Pacific Ocean, the aquarium features more than 60 habitats of fish and invertebrates from the cold waters of the Pacific Northwest to the tropical waters of Mexico and beyond. An interactive museum showcases research discoveries by Scripps scientists on climate, earth, and ocean science and features five-dozen interactive elements. Accredited by the Association of Zoos and Aquariums, Birch Aquarium has an annual attendance of more than 440,000, including 40,000 school children.