Ages 13 and up: 

https://www.longbeach.gov/park/recreation-programs/programs-and-classes/volunteer-opportunities/

For more info on the academy:

https://lbsar.org/events/

Opportunites at Every Location:

https://www.longbeach.gov/library/connect/volunteer-opportunities/

Help Out: 

https://lbrm.org/ways-to-help/volunteer/

Get Involved at Local Parks: 

https://app.betterimpact.com/PublicOrganization/7fc2fd93-e8cd-47c3-9d3a-392e56c6ebaf/Gvi/6d96dd0a-d872-4a5c-835e-c6491add4784/1