Introduction to Jianbishi: Jianpaishi is said to have been split by Lu Dongbin’s sword. It is actually a flat joint surface exposed after the collapse of gravel rock. It looks like a knife cutting with a sword, hence the name. The sword-cut stone is eye-catchingly red. The steep wall is 67 meters high and 40 meters wide. It is towering and steep, standing on the green peak of Cangdai, majestic and magnificent.