The New Blue Hole is listed by the Marine Life Network as a recently discovered feature in the Pompey Complex, about 100 m in diameter, with sheer walls reported to go down as far as 90 m. It is recommended for experienced divers only, in contrast to the shallower Cockatoo Reef blue hole nearby. Little else is published about the site.

The sheer walls and great depth suggest a dramatic dive into deep blue water from a shallow rim, with the upper walls likely covered in coral and the deeper sections dim and sparsely populated. The depth range listed for recreational diving is 1-40 m. Because it is remote, tidal and deep, it should be approached as an expedition dive: recreational divers should stay within 30 m and remain on the wall, while any deeper exploration requires full technical training, equipment and support.

Research on the Pompey blue holes identifies holes at Cockatoo and Molar reefs; whether the 'New Blue Hole' corresponds to one of these or is a separate feature is not clear from available sources.

The Pompey Complex is a line of 'hard line' reefs on the outer edge of the shelf roughly 150-200 km north-east of Mackay. Access is by expedition charter or capable private vessel from Mackay Marina (Mackay Harbour) or Hay Point; allow most of a day for the crossing in good weather. Navigation in the Pompeys requires great care: the complex has some of the fastest tidal streams on the Great Barrier Reef, and passages between reefs run hard on the tide.

The New Blue Hole's position is not published; it is visited only by expedition charters with local knowledge.

The Pompey reefs are completely exposed to south-east trade winds and to the very strong tidal streams that sweep through the complex; spring tides can produce currents of several knots in the passages. Plan visits for neap tides and calm spells (typically September-December), and time dives inside the lagoon for the high-water slack when the reef is covered. At low water the lagoon rim is exposed.

Cyclone season November-April.

Descend the sheer wall to a planned depth within certification (recreational divers no deeper than 30 m), stay close to the wall for reference, turn early and ascend slowly along it to the rim for an extended safety stop.

Walls reportedly reach 90 m: any dive beyond 40 m requires technical training, trimix, decompression planning and full redundancy, with the added risk of a very remote location far from a chamber. Recreational divers should treat 30 m as a hard floor.

No regular operator – expedition charters and private vessels only; occasional Mackay-based charters by arrangement.