The Frank R. Lautenberg Secaucus Junction station is a major NJ Transit transfer hub, and it’s about three minutes (train-ride-wise) from the entrance to the trans-Hudson tunnels (which are the tunnels that allow trains to pass from NJ to NY).
Another fun fact: as far as I can tell, there are two acceptable pronunciations of Secaucus.
The first is one that I use: “s’CAW-kuss.”
The second is one that the train conductors use: “SEE-caw-kuss.”
I have never asked native Secaucusians how they pronounce their hometown. They’d know what’s right, I’d imagine.