At the taiwan taroko national park , it has been preserved for visitors to see the grandeur of the mountains and the madness of the engineers to blast through the hills to create tunnels to make ( very unsafe ) expressways through them . Walking through the mountains , you will signs to avoid standing below a cliff-like structures to prevent a case of rocks falling on your head . Hahaha .. Nonetheless , it's a nice place with it's majestic mountains , lush greenery and beautiful rapids running through the valleys .