The Rainbow Warrior wreck lies in the Cavalli Islands, serving as an artificial reef. Originally a Greenpeace flagship, the vessel was scuttled in 1987 to create a marine habitat. The wreck sits at a maximum depth of 27 metres, with an average depth of 22 metres. Divers encounter an overhead environment requiring intermediate skill levels. Conditions include mild currents and visibility ranging from 10 to 25 metres. Access is strictly by boat, located 6 kilometres from the shore. The site features various facilities nearby, including air fills, equipment rental, and boat charters. Divers should be aware of hazards associated with deep water and overhead environments.

The Tunnels in the Bay of Islands is a marine site featuring a combination of reef, cave, and wall topography. Divers can expect depths ranging from 12 to 23 metres, with an average depth of 17 metres. Access to this site is by boat only, as it is located 22 kilometres from the shore. Conditions are variable, with moderate currents and visibility typically between 5 and 10 metres. Due to the presence of an overhead environment and strong currents, this site is suited for intermediate divers. Water temperatures fluctuate throughout the year, ranging from 16C to 22C.

Taupo Bay in the Bay of Islands is a shore-entry reef site suited for intermediate divers. The topography features rocky areas at the southern end of the beach. Divers should be prepared for moderate currents and variable visibility ranging from 5 to 15 metres. The site is also subject to surf conditions, which can impact accessibility. Typical dives last approximately 45 minutes. Facilities available at the location include parking, toilets, showers, and changing rooms. Due to the nature of the environment, divers must remain aware of potential hazards including surf, strong currents, and low visibility.

Howe Point Tunnel in the Bay of Islands is a reef and cave site suitable for intermediate divers. The site features an overhead environment, requiring appropriate training and caution. Depths typically range between 12 and 15 metres, with an average depth of 12 metres. Access to this location is by boat only. The habitat supports a variety of temperate marine life, including reef fish and invertebrates common to the region. Water temperatures fluctuate throughout the year, ranging from 16C in winter to 22C in late summer.

Moturua Island in the Bay of Islands offers shallow reef and kelp forest diving. The site is suitable for beginners, featuring calm, shallow water along the reef edges. Divers should note that conditions vary, with moderate currents and potential surf at entry points. Access is by boat, and the water temperature ranges from 16 to 22 degrees Celsius throughout the year. Due to active boat traffic in the area, divers must tow a surface marker buoy on every ascent. Plan entries and exits at sheltered bays rather than exposed faces to avoid stronger currents found around the island points.

Cooks Cove is a calm reef dive located near the Hole in the Rock in New Zealand. The site is well suited to beginner divers, with a reef structure sitting at depths between 10 and 15 metres. Divers can expect visibility ranging from 5 to 10 metres with minimal current, allowing for a relaxed experience. Access to the site requires a boat charter. While specific sightings at this exact location are not confirmed, species recorded around this area include wrasses, scorpionfish, pink snapper, and various lobster species. The site is open for diving year-round, though visitors should monitor local sea and weather conditions before planning a trip.

Twin Lagoons at the Hole in the Rock in New Zealand is a sheltered reef site suitable for beginners. The area features an interpretive underwater snorkel trail marked by plaques, making it a popular location for snorkelling. Divers and snorkellers can expect shallow depths ranging from 1 to 5 metres, with an average depth of 3 metres. Access to the site is by boat only. Conditions are generally mild, with water temperatures fluctuating between 16C and 22C throughout the year. The site is well-suited for those seeking a relaxed, shallow-water experience in the Bay of Islands.

Cable Bay at the Hole in the Rock in the Bay of Islands offers accessible shore entry into a diverse rocky reef environment. Suitable for both diving and snorkelling, the site features depths ranging from 5 to 30 metres, with an average depth of 15 metres. Conditions are generally mild, though visibility fluctuates between 5 and 25 metres. Divers and snorkellers should remain aware of boat traffic in the area. Facilities available at the location include a cafe, toilets, and guided tours. The site is well-suited for beginners looking for an easy-access coastal experience.