If you want to avoid the hustle of Las Vegas and enjoy calm and peaceful natural beauty, you can think of Emerald Cave for sure. About an hour from Las Vegas, in the Black Canyon, lies the Emerald Cave. The cave covers parts of the Colorado river too. Along the 26-mile trail, you’ll witness amazing canyons and cliffs. The cave is called Emerald as the water in this shallow cave sparkles like a spectacular emerald gem when the sun rays reflects. You can visit the cave at any time but it’s best to plan your trip during autumn, winter or spring.