Delve into an ancient wonderland of stalactites, stalagmites and glowworms in the enormous Nile River Caves. At the Charleston Base you'll be equipped with caving helmets, coats and boots and the taken to the Nile River Rainforest Train where you'll travel through the forest before exploring the dry upper levels of the Aranui Entrance series. Recently discovered, the Metro cave is one of only several caves in the world left in a natural unspoilt state. Exploring the lower level of the cave system, in the dark you will find galaxies of glow worms spanning over you. Your guides will enrich your journey with captivating illustrations, explanations and stories connecting you with this special place. After emerging back to the daylight a short stroll leads back to the train.