Classified for credit

USFWS refuge on San Diego Bay — covers shorebird and migratory bird ecology, salt marsh habitat restoration, and Pacific Flyway geography.

Electric railway museum and historic depot covering the history of urban transit, early electrical engineering, and railroad operations.

San Diego History Center in Balboa Park with archives and exhibits spanning California and Southwestern regional history from Spanish contact forward.

Federal wildlife refuge in coastal San Diego County — covers chaparral and coastal sage scrub ecology, endangered species habitat, and migratory bird biology.

Small LA County nature center in a canyon — native plant identification, local wildlife ecology, and watershed biology.

Canyon park with riparian habitat, trails, and a nature center — covers Southern California chaparral ecology, watershed biology, and native plant communities.

Federally designated estuarine reserve on San Francisco Bay — covers tidal ecology, wetland biology, water quality, and Bay Area geography.

San Francisco Bay estuary refuge with visitor center — tidal wetland ecology, migratory shorebird biology, and Bay Area watershed science.

NWR visitor center on South San Francisco Bay — covers salt marsh ecology, migratory bird biology, and Bay estuary conservation.

Free museum in the Embarcadero covering SF streetcar and cable-car history — mechanical engineering of transit and urban transportation history.

BLM-managed river gorge recreation area with diverse chaparral and riparian habitats — supports ecology, watershed science, and physical education through hiking.

Central Valley river refuge with riparian wetlands — supports migratory bird ecology, Central Valley watershed biology, and wildlife conservation study.

Accredited art museum with rotating and permanent contemporary exhibits — supports visual art analysis, art history, and cultural studies.

Central Valley NWR unit providing habitat for millions of migratory birds on the Pacific Flyway — covers waterfowl biology, wetland ecology, and conservation land management.

California native and Mediterranean-climate botanical garden — covers plant ecology, climate zones, and drought-adapted species identification.

Regional fine-arts museum on the Central Coast with permanent collection and rotating exhibits — supports art-history and visual-arts curriculum.

State wildlife area surrounding a major reservoir — covers freshwater ecology, migratory bird biology, and California Central Valley geography.

Traditional Japanese garden demonstrating horticultural design, plant selection, and cultural landscape principles.

National Wildlife Refuge HQ on San Pablo Bay — covers tidal wetland ecology, shorebird biology, and bay watershed conservation programs.

Site of the 1846 Mexican–American War Battle of San Pasqual — covers Manifest Destiny, military history, and California's transition to U.S. statehood.

Regional art museum with collections spanning ancient to contemporary — supports art history and visual arts curriculum with accessible public galleries.

Community natural history museum on Monterey Bay covering local marine and terrestrial ecosystems — supports marine biology, paleontology, and California natural history.

Wetland and riparian nature center along the San Gabriel River — covers local ecology, water systems, and Southern California native wildlife.

Flood-control reservoir recreation area with nature trails — covers watershed management, riparian ecology, and civil engineering context.