Gta 5 Sewer Tunnel Location Casino Heist. The garage door of the security tunnel underneath the race track to the right of the casino. Near the end of the storm drain is a side exit that goes underground.
Keypad door next to the pool. The garage door of the security tunnel underneath the race track to the right of the casino. Head into the underground tunnel.
A short distance from the casino there s a large storm drain.
A short distance from the casino there s a large storm drain. Roof terrace 1 access point. Photograph this for the sewer tunnel access point. There s a sewer tunnel right across the street from the casino.
