Reed Flute Cave: Situated in a completely concealed spot on Guangming Hill, 3.2 miles northwest of the town, Reed Flute Cave is Guilin's largest and most impressive cave. Its name is explained by the fact that reeds for making flutes and pipes have been grown in this region since ancient times. This dripstone cave is 790 feet deep, and a visitor will walk for some 550 yards through a zigzagging sea of stalactites and stalagmites in dazzling colors. Although the cave is also known as a Palace of Natural Art, manmade strategies use artificial lighting to emphasize the coincidental similarity of the rock formations to birds, plants, and animals. One grotto is called The Crystal Palace of the Dragon King--an area that resembles a miniature Guilin. Over 70 wall inscriptions from the Tang Period (618-907) bear eloquent witness to the cave's long history.