After a long afternoon of hiking, I took my family up to drive through the tunnel. The drive up to the tunnel is worth it all on it's own. Beautiful rock cliff canyon and great views. The tunnel itself is really neat. It goes on and on. There are a few windows where the side of the tunnel opens up and you can see out over the valley. There is two way traffic unless a tour bus goes through, then they shut down traffic and make it a 1 way tunnel till the tour bus has passed. The tour bus has to drive down the center of the tunnel for clearance. On the way back we had to wait the full amount of time for the bus coming from the opposite direction. It only took about 6 minutes in the line before they opened the traffic up to bidirectional traffic again. We were lucky to be able to find a parking spot at the bathrooms just across from the guard station at the top of the tunnel.
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