How to unlock the tunnels in Big Walk

Big Walk’s underground tunnels are locked at first and only open after specific tower progression.

Players must clear the northern yellow tower, collect red gourds, use the tower key, and activate the entrance near the black tower.

Once unlocked, the tunnels offer a dark but usable underground route with flashlights and signs to other towers.

The tunnels matter because they speed up map travel and help players avoid tricky cliff crossings.