Classified for credit

Remote backcountry natural area featuring a waterfall that disappears underground — karst geology, hydrology, and Appalachian ecology.

National monument protecting VI coral reef ecosystems — marine biology, coral ecology, and Caribbean geography through snorkeling and ranger programs.

Discovery center at Callaway Gardens with hands-on natural history exhibits, butterfly garden, and ecology trails covering Georgia Piedmont habitats.

Drive-through and walk-through safari park with over 180 species — covers zoology, animal behavior, and wildlife conservation in a hands-on outdoor setting.

AZA-accredited zoo with conservation programming — animal biology, zoology, and wildlife conservation across diverse species collections.

Morton Arboretum visitor center anchoring 1,700 acres of labeled woody plant collections — supports dendrology, plant ecology, and landscape biology.

Wilderness national park of interconnected lakes and boreal forest — covers aquatic ecology, geology, and northern forest biology.

Hawaiian state park on the Hana coast featuring black-sand beach, lava sea caves, and native coastal ecology for geology and biology study.

Federally protected nearshore marine conservation district — supports hands-on marine biology, coral reef ecology, and ocean conservation study via snorkeling.

Hawaiian river state park with kayaking access and lush riparian habitat — supports study of tropical ecology, watershed geography, and native species.

Kauai canyon state park often called the 'Grand Canyon of the Pacific' — volcanic geology, erosion, and Hawaiian ecology.

Historic Hawaiian valley with botanical garden, waterfall, and cultural exhibits covering native Hawaiian ecology, agriculture, and indigenous history.

One of Florida's largest freshwater springs with wildlife-rich boat tours — covers aquatic ecology, spring hydrology, and Florida biodiversity.

State reservation preserving the pond and woods that inspired Thoreau's Walden — ecology, conservation history, and American transcendentalist literature.

Washington state park featuring multi-tiered waterfalls and old-growth forest trails — covers hydrology, Pacific Northwest ecology, and physical fitness.

Working Texas farm offering hands-on visits covering livestock care, plant agriculture, and rural food-production systems.

Great Lakes shoreline state park with massive sand dunes — covers aeolian geology, Great Lakes coastal ecology, and dune succession.

University of Washington arboretum with 5,000+ plant species — supports plant taxonomy, Pacific Northwest ecology, and botanical classification.

Meijer Gardens sculpture and botanical garden — covers plant biology and horticulture; sculpture component provides art context.

Canyon trail corridor along the South Platte River featuring bighorn sheep habitat, riparian ecology, and geology of the Front Range foothills.

West Virginia's largest state park with old-growth forest, river ecology, and ranger programs covering Appalachian biodiversity.

Public garden and cultural center overlooking the Hudson — plant biology, ecology, and observational drawing in a structured outdoor setting.

Large New Jersey state park with lake, forests, and wetlands — covers northern hardwood ecology, glacial lake geology, and Appalachian plant and animal communities.

Florida spring-fed park with snorkeling and wildlife observation — covers freshwater ecology, spring hydrology, and native Florida species.