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.

Fraggle Rock is a marine dive site situated near RikoRiko Cave in the Poor Knights Islands, New Zealand. The site features a consistent depth of approximately 18 metres. Conditions at this location vary, with water temperatures ranging from 16C in the winter months to 21C during the peak of summer. This site is suitable for beginner divers looking to explore the underwater topography of the region. Access to the site is typically via boat given its location within the Poor Knights Islands group.

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.

The Pinnacles, located near RikoRiko Cave, features a complex topography of rocky spires and walls draped in kelp forest. Divers can explore depths between 18 and 25 metres, with visibility typically ranging from 10 to 20 metres. The site experiences mild currents, though surges can occur near the walls. Due to water temperatures between 16 and 21 degrees Celsius, appropriate thermal protection is recommended. Access is by boat only, and divers should remain vigilant regarding boat traffic in the area. Always deploy a surface marker buoy upon ascent and check local marine reserve conditions before diving.

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.

Landing Bay Pinnacle is a diverse site featuring a reef, wall, and kelp forest that rises from 45 metres to within 5 metres of the surface. This advanced dive offers a full water-column experience with visibility typically ranging between 15 and 30 metres. Divers encounter mild currents, though surge and swell require attention in shallower sections. Given the depth, careful gas management and a conservative ascent plan are essential. Access is by boat only, and divers should deploy a surface marker buoy well before ascending due to active boat traffic. Water temperatures remain between 16 and 19 degrees Celsius, making a 5 mm wetsuit or drysuit appropriate.

Mao Mao Arch is a reef and cave site located at RikoRiko Cave in the Poor Knights Islands. Divers and snorkellers access this site by boat, exploring depths between 7 and 20 metres with an average of 15 metres. The site features an overhead environment within the arch, requiring comfort in enclosed spaces. Visibility ranges from 10 to 30 metres, though moderate currents can strengthen inside the cave. Marine life recorded here includes wrasses, scorpionfish, clown doris, pufferfish, blue-spotted wrinkle dorids, kingfish, pink maomao, banded coral shrimp, and John Dory. Rarer sightings include mosaic moray, smooth ray, green moray, eagle ray, and long-nosed fur seal. Night diving is also available.

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.