The bright Red San Diego Trolley is actually an above-ground light rail with four routes:
The Blue Line is 15.4 miles long with 18 stations. This line operates from the San Ysidro Transit Center through South County communities to American Plaza via the Center City corridor.
The Orange Line is 18.0 miles long with 19 stations. This line operates from the El Cajon Transit Center through East County communities to the Santa Fe Depot via the Center City corridor.
Green Line is 23.6 miles long with 27 stations. This line operates from Santee Transit Center via San Diego State University, Qualcomm Stadium and Mission Valley to 12th and Imperial Transit Center via the bayside corridor.
The Silver Line is 2.7 miles long with 9 stations. This line operates on a limited basis on the downtown loop, from 12th & Imperial Transit Center along the bayside to C Street and Park Blvd.
Standard Regional Pass includes: SPRINTER, BREEZE, MTS Bus, MTS Trolley, MTS Rapid
Premium Regional Pass includes: SPRINTER, BREEZE, FLEX, MTS Bus, MTS Trolley, MTS Rapid, MTS Rapid Express, MTS Rural
COASTER Regional Pass includes: COASTER, SPRINTER, BREEZE, FLEX, MTS Bus, MTS Trolley, MTS Rapid, MTS Rapid Express, MTS Rural
From Terminals 1 and 2, take City Bus Route 992 to the Broadway and Kettner Blvd bus stop in downtown San Diego. From there the UC San Diego Blue Lines can be accessed from the America Plaza Station on the corner of Broadway and Kettner Blvd and the Orange Line can be accessed from the Courthouse Station. The Sycuan Green Line can be accessed from the Santa Fe Depot Station on Kettner Blvd, one block north of the bus stop.