Surf Line

The Surf Line is a railroad line that runs from San Diego to Orange County along California's Pacific coast. It was so named because much of the line is near the Pacific Ocean, within less than 100 feet (30 m) in some places. It is the second busiest passenger rail corridor in the United States after the Northeast Corridor.

The tracks are now owned by Metrolink in Orange County and the North County Transit District (NCTD) in San Diego County and hosts Metrolink's Orange County Line and Inland Empire–Orange County Line, San Diego County's Coaster, and AmtrakPacific Surfliner passenger trains. BNSF Railway operates freight over the line using trackage rights.