Heal the Bay presents L.A. County Coastal Cleanup Day

September 20: Join thousands of volunteers across Los Angeles to clean up beaches, parks, and neighborhoods while taking part in a statewide scavenger hunt with prizes. FREE!

Dates:
Location:
Los Angeles County Los Angeles County, CA
+ Google Map
Cost:
Free

Pomona Children’s Festival

September 20: This Children's Festival offers fun activities for all ages, community sports sign ups, learning experiences, and much more.

Dates:
Location:
Ganesha Park Pool 1575 North White Ave., Pomona, CA
+ Google Map
Cost:
Free

Train Festival at Union Station in Los Angeles

September 20–21: Celebrate trains with tours, exhibits, and family fun at Train Festival 2025. FREE!

Dates:
Location:
Union Station Los Angeles 800 N Alameda St., Los Angeles
+ Google Map
Cost:
Free

Zero to Three Jamboree at the Autry Museum in Los Angeles

September 20: Celebrate LA’s littlest kids with crafts, games, food, a photo booth, and gift bags for the first 125 children. FREE!

Dates:
Location:
Autry Museum of the American West 4700 Western Heritage Way, Los Angeles, CA
+ Google Map
Cost:
Free

Thai Fest at the Santa Monica Pier

September 20-21: A celebration of Thai culture featuring Muay Thai demonstrations, celebrity fighter appearances, and authentic Thai food. Enjoy traditional dance and shopping with Thai vendors. FREE!

Dates:
Location:
Santa Monica Pier 200 Santa Monica Pier, Santa Monica
+ Google Map
Cost:
Free

A Decade By the Sea Celebration at Pacific City

September 20: Celebrate Pacific City’s 10th anniversary with a free kids’ carnival and more activities.

Dates:
Location:
Pacific City 21010 Pacific Coast Hwy., Huntington Beach, CA
+ Google Map
Cost:
Free

I Love Downey Festival

September 20: Enjoy live music, art, community booths, and festival fun.

Dates:
Location:
Downey Ave.
Cost:
Free

Fantasia Festival at the Autry Museum in Los Angeles

September 21: Celebrate Disney magic with activities, entertainment, and photo ops at Fantasia Festival. FREE!

Dates:
Location:
Autry Museum of the American West 4700 Western Heritage Way, Los Angeles, CA
+ Google Map
Cost:
Free

Fall Festival at the Westminster Civic Center Sunken Gardens

September 25-28: A weekend of family fun, including delicious food, exciting live entertainment, and carnival rides. FREE!

Dates:
Location:
Civic Center Sunken Gardens 8200 Westminster Blvd., Westminster, CA
+ Google Map
Cost:
Free

Movie Night: Moana 2 at USS Iowa in San Pedro

September 25: Watch Moana 2 on Battleship IOWA, snacks from Vicky’s Doghouse Café available.

Dates:
Location:
Battleship USS Iowa 250 S. Harbor Blvd., Berth 87, San Pedro, CA
+ Google Map
Cost:
Free

Mid-Autumn Festival at Great Park in Irvine

September 26: Enjoy cultural displays, entertainment, and moonlit festivities at Irvine’s Mid-Autumn Festival. FREE!

Dates:
Location:
Great Park - City of Irvine 8000 Great Park Blvd., Irvine, CA
+ Google Map
Cost:
Free

Scout-O-Rama Community Event at Long Beach City College

September 27: Scout-O-Rama is a large community event open to the public. Enjoy a fun-filled day with free entertainment, games, activities, and leadership opportunities.

Dates:
Location:
Long Beach City College - Liberal Arts Campus 4901 E. Carson St., Long Beach
+ Google Map
Cost:
Free

Puptoberfest in La Mirada

September 27: Bring your pup for adoptions, contests, food, and fun.

Dates:
Location:
Windermere Park - La Mirada 15261 Cheshire St., La Mirada, CA
+ Google Map
Cost:
Free

Public Safety & Emergency Preparedness Expo in Lakewood

September 27: See demos from the LA County Sheriff's Department and Fire Department, including search-and-rescue dogs. Get an up-close look at fire trucks, sheriff's patrol cars, and meet the pilot and see Lakewood's Sky Knight helicopter.s.

Dates:
Location:
Lakewood Civic Center 5050 Clark Avenue, Lakewood
Cost:
Free

Academy Museum Anniversary Free Day 2025

September 28: Enjoy free museum admission with performances, crafts, and dance.

Dates:
Location:
Academy Museum of Motion Pictures 6067 Wilshire Boulevard, Los Angeles, CA
+ Google Map
Cost:
Free

Barclay Block Party in Irvine

September 28: Enjoy family fun and live swing music at Irvine Barclay Theatre. FREE!

Dates:
Location:
Irvine Barclay Theatre 4242 Campus Dr., Irvine, CA
+ Google Map
Cost:
Free

Kids Free San Diego

October 1-31: During the entire month of October, kids 12 and under receive free admission with a paid adult to more than 60 of San Diego County's favorite museums, historic sites, aquariums, gardens and more. Many are even free for the whole family!

Dates:
Location:
San Diego San Diego, CA
+ Google Map
Cost:
Free

Tustin Tiller Days Festival & Parade

October 3-5: Enjoy a parade, carnival rides, entertainment, vendors, brewfest, and more.

Dates:
Location:
Columbus Tustin Park 17522 Beneta Way, Tustin, CA
+ Google Map
Cost:
Free

Science Showtime at Golden West College

October 3: Make slime, control robots, and create exploding gummy bears at the Science Nite at Golden West College. FREE!

Dates:
Location:
Golden West College 15744 Goldenwest St., Huntington Beach
+ Google Map
Cost:
Free

Movie in the Park: Lilo & Stitch in Corona Del Mar

October 3: Bring family, friends and neighbors out to Irvine Terrace Park to enjoy some fresh air, free popcorn, free candy, free activities, and a live screening of "Lilo and Stitch."

Dates:
Location:
Irvine Terrace Park 721 Evita Dr., Corona Del Mar, CA
+ Google Map
Cost:
Free

Scaredown in Downtown Torrance

October 4: Trick-or-treat, meet Addams Family’s Sean Cassidy, and explore Spooky Trails. FREE.

Dates:
Location:
Downtown Torrance
Cost:
Free

The Tamagotchi USA Road Trip at Irvine Spectrum

October 4–5: Decorate Tama cases, snap pics with characters, and check out exclusive merch at the Tamagotchi Road Trip stop in Irvine. FREE!

Dates:
Location:
Irvine Spectrum Center 670 Spectrum Center Drive, Irvine
+ Google Map
Cost:
Free

Harvest Festival in Gardena

October 4: Celebrate fall with music, vendors, kids’ activities, and a cornhole tournament at Gardena’s Harvest Festival. FREE!

Dates:
Location:
City Hall Complex - Gardena 1700 W. 162 St., Gardena, CA
+ Google Map
Cost:
Free

Battle of Dominguez Hill Reenactment in Rancho Dominguez

October 4: Come see a live reenactment of the Battle of Dominguez Hills. This historic event welcomes vendors, a taco truck, military encampments, activities, and, of course, a battle reenactment. FREE!

Dates:
Location:
Dominguez Rancho Adobe Museum 18127 South Alameda Street, Rancho Dominguez, CA
+ Google Map
Cost:
Free

Mid-Autumn Festival at Mt Sac College

October 4-5: Celebrate the Mid-Autumn Festival with food, shopping, and live performances in Walnut.

Dates:
Location:
Mt. San Antonio College 1100 N. Grand Ave., Walnut, CA
+ Google Map
Cost:
Free

Moon Festival at Arcadia City Hall Lawn

October 4: Enjoy mooncake making, live entertainment, and kids’ activities at Arcadia’s Moon Festival. FREE!

Dates:
Location:
Arcadia City Hall Lawn 240 W. Huntington Dr., Arcadia, CA
+ Google Map
Cost:
Free

International Observe the Moon Night at Orange Coast College

October 4: View the waxing gibbous moon through high-powered telescopes and engage with knowledgeable astronomy students and faculty, who will be on hand to share fascinating insights about the moon's craters, mountains, and seas. FREE!

Dates:
Location:
Orange Coast College - Planetarium 2701 Fairview Road, Costa Mesa, CA
Cost:
Free

Asian Mid-Autumn Moon Festival at Bowers Museum

October 5: Celebrate with live performances, art making, and a taste of mooncake. FREE.

Dates:
Location:
Bowers Museum 2002 N. Main St., Santa Ana, CA
Cost:
Free

Haunted Escape Room at the Mission Viejo Library

October 10-12: Test your problem-solving skills and your ability to work in a team while trying to escape the curse. FREE!

Dates:
Location:
Mission Viejo Library 100 Civic Center, Missiosn Viejo
+ Google Map
Cost:
Free

Fall-O-Ween at Heritage Hill Historical Park in Lake Forest

October 10–12 & 17–19: Celebrate five years of Fall-O-Ween with costumes, photo ops, a straw maze, and a spooky scavenger hunt at Heritage Hill Historical Park. FREE!

Dates:
Location:
Heritage Hill Historical Park 25151 Serrano Road, Lake Forest
Cost:
Free

Long Beach Zombie Walk & Halloween Party

October 11: Zombies take over Shoreline Village in Long Beach with a family-friendly Kids Zone, live music, spooky eats, costume contests, and the iconic Zombie Walk. FREE!

Dates:
Location:
Shoreline Village 401-435 Shoreline Village Drive, Long Beach
+ Google Map
Cost:
Free

Disclaimer: The Kidsguide team does their best to keep event details accurate at the time of posting, but information can change without notice! Be sure to double-check with the event organizer before heading out. Kidsguide is not responsible for any errors, omissions, or changes on our calendar—we’re just here to help you find the fun!