Categories News Tours and Activities Family fun firetruck rides Post author By Grand Canyon Caverns Post date April 27, 2019 Leaves from front of the cavern building, 15 and 45 min. past the hr, daily 10:15 am – 4:15 pm. Information & Reservations available in the Curio shop or contact us. ← Grotto & Tour Special – Lunch 200ft. Underground! → May 2019 Grand Canyon Caverns Newsletter