| Butterfly Habitat Arrival | 04/08/2024 |
| Butterfly and Ladybug Habitat Returns! | 04/07/2025 |
| Butterflies & Blooms Crafts @ Balboa | 04/09/2025 3:00 pm - 4:00 pm |
| Butterflies & Blooms Crafts | 05/15/2019 3:30 pm - 4:30 pm |
| Bunnies and Books for Kids Festival | 05/13/2017 10:00 am - 1:00 pm |
| Build Your Own Puzzles! | 06/08/2025 |
| Build a City! | 07/08/2017 11:00 am - 12:00 pm |
| Build a City! | 07/03/2017 2:00 pm - 3:00 pm |
| Build a City! | 07/06/2017 11:00 am - 12:00 pm |
| Build a City! | 07/06/2017 3:00 pm - 4:00 pm |
| Build a City | 11/23/2019 11:00 am - 12:00 pm |
| Brother Yusef | 06/24/2017 10:30 am - 11:30 am |
| Brian Richards Virtual Magic Show | 04/04/2021 |
| Bouquet of Crafts - CANCELED | 05/05/2020 4:00 pm - 5:00 pm |
| Boom! Zap! Pow!: The Ultimate Superhero Celebration | 04/30/2022 9:00 am - 5:30 pm |
| Bookshelf Scavenger Hunt Begins! | 08/13/2023 |
| Bookshelf Book Hunt | 12/27/2023 |
| Books and Bunnies Festival for Kids | 07/13/2019 10:30 am - 1:00 pm |
| Books & Badges @ Central | 06/07/2025 10:30 am - 11:30 am |
| Books & Babies @ Mariners | 08/12/2025 10:30 am - 11:00 am |
