Watanabe Bommie is a pinnacle, wall, and reef site located 40 kilometres offshore in the Coral Sea. The topography features a wall that drops from 20 metres into significant depths, requiring careful monitoring of depth gauges. Divers experience mild currents and consistent visibility of 30 metres. The site is accessible only by boat. While the pinnacle offers a variety of reef habitats, divers should remain above 20 metres to keep the dive within manageable recreational limits. The environment supports a range of reef fish and invertebrates typical of the region. Due to the significant drop-offs, this site is best suited for experienced divers comfortable with deep water.

Dart Reef is a remote oceanic wall site in the Coral Sea, featuring a dramatic drop-off that begins at 25 metres and extends to depths exceeding 400 metres. This site is strictly for advanced divers due to the significant decompression obligations and deep-water environment. Visibility is exceptional, ranging from 30 to 100 metres. While currents are generally mild, they can shift, and divers must manage risks including nitrogen narcosis and decompression. Access is exclusively by boat, located 110 kilometres from the shore. Divers should carry a surface marker buoy and redundant dive computers to navigate the challenging conditions of this deep-water reef.

Herald Surprise is a wall and reef site in the Coral Sea, offering depths reaching 70 metres. The vertical wall structure is colonised by soft corals, sponges, and sea fans. Divers experience consistent visibility of 30 metres, though the remote, exposed location means conditions can be unpredictable. This site is suited for advanced divers capable of managing decompression dives and strong currents. Access is by boat only. Divers should carry a reef hook for use along deeper sections of the wall and confirm decompression gas availability with their operator before departure. The site supports a variety of reef fish and invertebrates typical of the region.