San Joaquin Reserve Loop

The University of California, Irvine Arboretum (UCI Arboretum or UC Irvine Arboretum) is a 12.5-acre botanical garden and arboretum, part of the University of California, Irvine in Irvine, California. It is located north of the main UCI campus, on Campus Drive in Irvine, near the San Joaquin Wildlife Sanctuary and the Upper Newport Bay.

The San Joaquin Wildlife Sanctuary is a 300 acres (120 ha; 0.47 sq mi) constructed wetland in Irvine, California, in the flood plain of San Diego Creek just above its outlet into the Upper Newport Bay.The site is owned by the Irvine Ranch Water District; it was used for farmland in the 1950s and 1960s, and (prior to its reconstruction) as a duck hunting range.

Sand Canyon Wash is an approximately 6.9-mile (11.1 km) (to its longest source) tributary of San Diego Creek in Orange County, southern California.