Belmont Train Tunnel

Belmont Tunnel, built in 1920, is now only a road for cars, the trains travel a track just west of the tunnel.
Pa Pa and Jaydon were taking turns yelling into the tunnel.
Pa Pa: "Jaaaaydon, Jaaaydon!"
Jaydon: "Aaaaalvin, Aaaaalvin!" (From Alvin and the Chipmunks)