Casino Sewer Tunnel Entrance. There is a small tunnel next to the casino under the racetrack. Near the end of the storm drain is a side exit that goes underground.
Near the end of the storm drain is a side exit that goes underground. How to start casino heist in the sewer. Where is the sewer in gta for the diamond casino heist.
There are two access points here one below the helipad and one through the door accessible from the casino elevator.
A short distance into the tunnel you will spot a metal grate on the right hand side. Near the end of the storm drain is a side exit that goes underground. As always head towards the casino but not the side doors the roof or the main entrance. There are two access points here one below the helipad and one through the door accessible from the casino elevator.
