GTA V / Online Tunnels

A tip if you’re using this for a wanted level: changing clothes (including accessories) can drop your wanted level 1 star when cops are in the searching (flashing) phase.
This is is no way a complete list. I’ll add more as I remember to screenshot them.

Sewer Tunnel

This can also lead into the subway



Tracks entrance

Cypress Flats

Happy hiding, watch out for ghosts.