The Great Grunion Run

See the Great Grunion Run on a Beach in SoCal

Meet the Flintstones. Meet the Flockers. Meet the Grunion?! Yep. They’re the flashiest show this side of the Oscars, and they’re on a limited run. The great grunion run is when hundreds of silvery, flashing sardine-size fish make a dazzling nighttime lunge onto some SoCal beaches to lay eggs. Grunion have good timing, breeding in spring and summer around full moons and new moons.

They arrive at night after high tide. And if you happen to be at a beach where they show, you’re in for a spectacle. Please just be respectful, and safe, when you visit. One of the places you may have a premier chance to see the grunion is at Cabrillo Beach in San Pedro. California Fish and Wildlife has some of the best information on grunion runs and timing through summer. 

Bring a flashlight if you decide to wait patiently by water’s edge for the grand grunion arrival. If the seagulls don’t get to the grunion first, it’s game on as you delicately go in for a closer look at these marvelous fish that can look like a silver blanket on the sand, as they squirm, burrow, and wriggle in an egg-laying frenzy before catching the next wave back out to sea. Gone in a flash! 

NOTE: While it's very cool to see the grunion, please respect their effort to lay eggs, and don't disturb or harass them for the 'gram.

TIP: A grunion run is anticipated this weekend (Sunday, July 21, 2024). Be sure to check the California Fish and Wildlife grunion page for helpful up-to-date information, and some tips.

Photo Credit: Photo of Grunion fish by California Fish and Wildlife.

Trending Stories NorCal

View all Stories
  1. Paint Brushy

    This time of year you’ll have good reason to head for the hills—the electric-green rolling hills of Brushy Peak Regional Preserve in Livermore. This 4.5-mile loop hike is like stepping into a plein air painting.

    View
  2. Woman hiker is climbing up the ladder in the Steep Ravine section of the Dipsea Loop Trail on Mount Tam

    Misty on Mount Tam

    Mount Tam’s 3.9-mile round-trip Steep Ravine and Dipsea Trail Loop weathers the wets and wilds with some confidence, sheltered in parts by redwoods, and wowing with a waterfall.

    View
  3. All right, Almaden!

    Take a trip through time on this 5-mile loop in Almaden Quicksilver County Park. Explore the ruins of an old cinnabar mine and enjoy the first hints of wildflower season.

    View
  4. Up and Umunhum

    Early risers can experience one of the Bay Area’s best morning glory hikes on this 7.4-mile out-and-back up beautiful Mount Umunhum. In early spring if you arrive at the parking area right before sunrise, you’ll get a beautiful eastern view of the sun coming up between Bald Mountain and the nearby Santa Cruz Mountains. On days when fog settles into the valley, the colorful view is nothing short of magical.

    View

Trending Stories SoCal

View all Stories
  1. Sponsored

    Weekend in Reno Tahoe

    Weekend plans? Reno Tahoe! Just a few hours by car or a short flight away, Reno Tahoe springs to the moment with great ways to combine adventure and relaxation in its beautiful mountains-meets-desert setting.

    View
  2. Hiker walking along the North Bluff Trail on Santa Cruz Island, Channel Islands National Park

    Purely Wild

    Channel Islands National Park lives up to its nickname as “North America’s Galapagos.” This less-traveled national park is an undeveloped and isolated series of five dramatic and distinct islands reached by boat. Hike the largest of the islands, Santa Cruz.

    View
  3. Woman hiking the South Kaibab Trail in the Grand Canyon

    Truly Grand Day Hike

    One of the best spring day hikes in the Grand Canyon? See layer upon layer of the park’s grandeur—including the river—on this 3-mile (one-way) journey to Skeleton Point via the South Kaibab Trail.

    View
  4. A woman stands amid an array of yellow and purple flowers at Descanso Gardens in Los Angeles

    Petal Paradise

    Tulips, lilacs, and daffodils—flower power is in full bloom at Descanso Gardens in La Cañada Flintridge. Sprawling across 150 acres surrounded by mountains, the gardens are putting on their best show right now.

    View