For a truly interesting excursion in Flagstaff, the Lava River Cave is by far one of the more intriguing activities in the area. The attraction is only 10 miles outside of the city, making it convenient and easy for a quick daytrip. It’s here you’ll find a relaxing cruise that will wind you through the dense pine trees at the foot of the mountains. The cruise ends at a majestic lava tube cave that offers a dark path one mile deep into the earth. Caves of this nature are created when lava flows under the ground, carving out long tubular caves into the earth. Former over 700,000 years ago, the floor retains the features of the wave-like patterns that the lava carved into the floor of the cave. Hanging from the ceiling are stone icicles that hardened when volcanic heat caused the rock to literally drip from the ceilings before solidifying. Make sure to bring warm clothes, good shoes, as well as several flashlights if you truly plan to explore the cave. It is suggested that each person carry at least two sources of light, and also that one wears a helmet (just in case of head bump-age). Even in the summer the cave is pretty chilly, so dress accordingly! The cave winds deep into the earth, and is extremely dark. The trek is not for everyone, and those toting extremely small children or those with physical handicapped are discouraged from attempting the hike. There are also bats in the cave, which can be really interesting to see close up! It is warned that all travelers must be respectful to these creatures in their natural habitats. If you’re in the mood for a trip that’s got a bit of intrigue, this is certainly the right trek for you!