Aranui Cave Waitomo's best kept secret. Aranui Cave is set in the Ruakuri Scenic Reserve 5 minutes drive from the Waitomo Glowworm Caves. It is named after Ruruku Aranui the local Maori man who first discovered this previously hidden gem back in 1910. Aranui Cave has a natural cave entrance and is the smallest and most delicate of Waitomo's three main caves. As a dry cave without a river running through it it houses very little life past its entrance. However just inside the entrance is a colony of native New Zealand cave wetas and further into the cave is the most beautiful collection of stalactites stalagmites flowstones and decorative formations.Visit soon to see the richly varied cave formations within close-up view and enjoy an experience you will never forget.