205 Ulaino Road, Hana, Maui, Hawaii
The Kaeleku Cave is a subterranean lava tube—the largest accessible lava tube in Maui, with the public given access to about 1/3 mile of the tube to explore for a fee. Inside, you’ll find many fascinating rock formations, stalactites, and even a cold war-era nuclear fallout shelter! A portion of the cave also features some interesting lava rock that curiously resembles ginormous mounds of melted chocolate. There are handrails for added safety, plus you’ll be provided with a powerful flashlight upon entering. After emerging from the cave, you can navigate through a unique red ti plant maze within the beautifully manicured grounds.