لها ممرات هشة جدا فوقها ممكن ان تنهار بسرعة جدا و تأخذك انت و زلاجتك الى الهاوية حيث لا يمكن ان ترى بعدها ابدا
Some of them have a very precarious thin footbridge underneath them that could give way at a moment's notice, taking your sled, you, into the abyss, never to be seen again.