October is one of the best months for fun-loving families to visit San Diego, because so many awesome places offer admission to children for free this month.

Legoland

The Deal: One child free with the purchase of one adult ticket ($169). Visit legoland.com/california/promotions/llckidsgofree/

Legoland is one of the best theme parks in southern California for young children (between the ages of 2 and 12) for its creativity, with nearly everything built out of Legos, play stations where kids can build and play with Legos, rides, and playgrounds. There’s also a new water park and an aquarium. Its annual Brick-or-Treat Halloween party is held every Saturday and Sunday in October.

The San Diego Zoo

The Deal: Free entrance for all children 11 and younger. Visit zoo.sandiegozoo.org/kids-free

During October, all children 11 and younger receive free admission to San Diego’s world-class zoo. Free admission includes guided bus tours and the Skyfari aerial tram. Be sure to enjoy the new splash pad just for kids called Adventure Basecamp.

The San Diego Safari Park

The Deal: Children 11 and under get in free (up to 4 children per paying adult). Visit tickets.sandiegozoo.org/webstore/shop/viewitems.aspx

The San Diego Safari Park and Zoo are owned by the same company, and both allow 11 and younger to get in free during October. The Safari Park offers more up-close encounters with animals than the San Diego Zoo. Be sure to check out the Safari Park Africa tram, which takes you right up to the animal enclosures.

Belmont Park

The Deal: One free child (under 48 inches and/or under 12) wristband with purchase of one adult wristband ($60). Visit sandiego.org/members/attractions/belmont-park/offers/buy-1-combo-wristband-get-1-free-jr-wristband.aspx

Entrance is always free at Belmont Park located in Mission Bay. You can pay per ride or purchase a wristband ($60 for adults and $55 for children except in October). Enjoy rides, zip lining, and laser tag (included with wristband).

Fleet Science Center

The Deal: One child under 12 gets in free with paying adult ticket ($24.95). Visit sandiego.org/members/museums/fleet-science-center/offers/kids-go-free-to-the-reuben-h-fleet-science-center-galleries-only.aspx

The Fleet Science Center located in Balboa Park is one of the most fun museums for families! There’s a Kid City upstairs, the dome IMAX theater, daily science experiments for children, interactive exhibits, and a huge ball pit for children.

The New Children’s Museum

The Deal: One child (17 and under) per paid adult ($24) gets in free on Wednesdays in October. Visit thinkplaycreate.org/event/kids-free-october-offer/

Located in downtown San Diego, this museum features a great balance between art, play, and movement—it’s centered on fun for kids of all ages!

The San Diego Children’s Discovery Museum

The Deal: Two children 12 and under get in free with the purchase of one adult ticket ($14). Visit sandiego.org/members/museums/san-diego-childrens-discovery-museum/offers/kids-go-free-to-san-diego-children-s-discovery-museum.aspx

There is so much for children to explore at this hidden gem of a museum. With dozens of interactive play and exhibits, there is more than enough for all ages to enjoy.

Seaworld San Diego

The Deal: One child (3-9) gets in free with purchase of one adult ticket ($117.99). Visit seaworld.com/san-diego/special-offers/kids-free/

Children of all ages will enjoy Seaworld. There are roller coasters, animal shows, and a new Rescue Jr. play area.

The Birch Aquarium

The Deal: Two children (3-17) get in free with purchase of one adult ticket ($29.95) during October. Tickets must be purchased online and in advance. Use KIDSFREE24 to redeem offer at checkout.

Home to the world’s smallest penguins, the Birch Aquarium located at UCSD in La Jolla is one of the best aquariums in Southern California. You can also see the loggerhead sea turtle, giant Pacific octopus, leopard sharks, moon jellies, weedy seadragons, and so many more.