We offer two different Blackwater Rafting experiences through the Ruakuri Cave. The Black Labyrinth is the original, 3-hour Blackwater Rafting tour. You will jump off two small waterfalls (highest is 1.5 meters), float on a tube underneath an impressive display of glowworms and navigate through the cave’s natural streamway. All participants must be at least 12 years old and weigh at least 45kgs. The Black Abyss is the ultimate 5-hour Blackwater Rafting tour. Abseil 35 metres into the cave and zipline across a river under a grotto of glowworms. You'll then float on a tube through the caves' natural streamway. All participants must be at least 16 years old and weigh 45kgs. An average level of fitness and mobility is required for both of our tours. It is important to understand that these tours take you into a completely natural cave environment. Please understand that your guides have final discretion of whether you will be able to participate on our tours.