There isn't one. :(
In the bin near the tunnel entrance.
By defintion, a tunnel is underground.
There is no underground tunnel.
You have to find all the pieces of the picture, so that you can open the secret entrance in the underground tunnel.
The main entrance is just to the left of the park where you arrive on the island. You will not be able to enter the museum until you have taken the Underground Tunnel Tour. At night, the secret underground entrance leads up into the supply room. You will need to open the Dragon Face lock. (see related question)
Mark and Alec were able to enter the underground bunker by finding a hidden entrance in the forest that led to a secret tunnel connected to the bunker. They had been searching for the entrance based on clues left by a previous explorer who had discovered the location.
it is an adjective because it is describing something.ex. the tunnel is underground-it describes where the tunnel is :)
Bill's house is in Goldenrod City, right beside the Game Corner and Underground Tunnel Entrance.
They are in a round trashcan to the right of the Tour entrance. You'll have to sort though the garbage until you find them. (see related question)
Tunnels are underground passages that are completely enclosed except for the entrance and exit. The longest road tunnel in the world is the Laerdal Tunnel, running over 80,000 feet. The fifth longest is the Hsuehshan Road Tunnel extending over 43,000 feet.
It depends where you want to end up.The far left leads to the docks. The far right leads to the main entrance to the tunnel. And the slightly broken ladder in the middle leads up to the museum.
Most are just distractions (for the "blue hand"). But you can dig through one of the pair of large trashcans to the right of the Underground Tunnel Tour entrance.