RikoRiko Cave is a large sea cave located at the Poor Knights Islands, New Zealand. This site features a wall topography and is accessible only by boat. Divers and snorkellers can explore depths ranging from 12 to 30 metres, with an average depth of 20 metres. The cave walls are lined with sponges and hydroids, while kelp grows near the entrance. Marine life observed here includes wrasses, scorpionfish, and clown doris, alongside less frequent sightings of green moray, smooth ray, mosaic moray, eagle ray, kingfish, pink maomao, pufferfish, banded coral shrimp, catshark, slipper lobster, and blue-spotted wrinkle dorid. Conditions include mild currents and visibility between 15 and 40 metres.

Brady's Corner and Meditation Wall, located at RikoRiko Cave, offers a diverse underwater environment featuring reefs, walls, and cave structures. The site is suitable for beginners, with depths ranging from 3 to 18 metres. Divers can explore a shallow ledge, a pinnacle, and a swim-through at 11 metres. Marine life includes common sightings of wrasses, scorpionfish, clown doris, and pink snapper. Divers may also encounter blue maomao, mosaic moray, smooth ray, green moray, pufferfish, pink maomao, and kingfish. Rare sightings include long-nosed fur seals and eagle rays. Conditions are variable, with visibility between 5 and 46 metres and water temperatures from 16 to 21C. Access is by boat only.

Jan's Tunnel is a cave and wall dive located within RikoRiko Cave at the Poor Knights Islands. Divers typically access the site by boat, with depths ranging from 10 to 30 metres and an average depth of 15 metres. The tunnel entrance begins at approximately 19 metres and gradually shallows to 10 metres. The site features a wall and cave topography that requires intermediate skill due to the overhead environment, potential surge, and risk of entanglement. Water temperatures fluctuate between 16C and 21C throughout the year. As this is a boat-only site located 23 kilometres from shore, divers should coordinate with local boat charters for access.

Trevor's Rocks at RikoRiko Cave features a diverse underwater landscape comprising a reef, wall, cave, and three distinct pinnacles ranging from 10m to 19m in depth. The site offers a shallow area suitable for beginners and snorkellers, including the El Torito arch. Divers can expect mild currents and visibility up to 20m. Marine life recorded here includes wrasses, scorpionfish, and the common clown doris. Less frequently encountered species include smooth rays, mosaic morays, eagle rays, green morays, kingfish, pufferfish, and the occasional long-nosed fur seal or catshark. Access is by boat only, and divers should remain aware of boat traffic and potential entanglement hazards.

Magic Wall at RikoRiko Cave is a wall and reef dive site located in the Poor Knights Islands, New Zealand. The site features a wall that descends to a sandy bottom at 18 to 20 metres, with an average depth of 15 metres. Divers encounter a variety of marine life including wrasses, scorpionfish, and nudibranchs such as the Clown Doris and Blue-spotted Wrinkle Dorid. Other species recorded here include Mosaic Moray, Smooth Ray, Green Moray, Eagle Ray, Pufferfish, Kingfish, Pink Maomao, Blue Maomao, Banded Coral Shrimp, and Southern Rock Lobster. Access is by boat only. Conditions include mild currents, with visibility ranging from 10 to 30 metres and water temperatures between 16C and 21C.

Cleaner Fish Bay at RikoRiko Cave offers a diverse underwater environment featuring reef, cave, and wall topography. Located 23 kilometres from shore, this site is accessible by boat and is suitable for beginners. Divers can expect depths ranging from 6 to 18 metres, with an average depth of 15 metres. Conditions are generally mild, though visibility can fluctuate between 10 and 30 metres. The site requires boat access and is supported by local facilities including air fills, dive shops, and guided tours. Typical dives last approximately 50 minutes. Hazards to be aware of include potential entanglement, variable visibility, sharp coral, strong currents, and surf.

Ngaio Rock is a pinnacle site located at the western end of the Labrid Channel near RikoRiko Cave. The rock rises from a sandy bottom, featuring steep walls that offer a variety of topography to explore. Divers and snorkellers can circumnavigate the rock to experience its diverse structure. Depths range from 5m to 45m, with an average of 25m. Access is by boat only, and visitors should be aware of moderate currents that can run through the channel. The site is suitable for intermediate divers, with visibility typically ranging between 10m and 21m. Water temperatures fluctuate between 16C and 19C throughout the year.

Nursery Cove is a sheltered, current-free site located at RikoRiko Cave in the Poor Knights Islands. Featuring both reef and artificial structures, it is well suited for beginner divers. Depths range from 4 to 18 metres, with an average of 10 metres. Visibility typically spans 10 to 30 metres, allowing for clear observation of the site topography. Water temperatures fluctuate between 16 and 21 degrees Celsius throughout the year. Boat access is required, and the site is suitable for night diving. Divers should remain aware of boat traffic and potential entanglement risks when exploring the cave and wreck areas.