Tina's Arm is Fairey Reef's showcase wall. 100 Magic Miles describes small bommies extending from a coral wall, with large Porites corals and gorgonian fans, depths of 5–30 m and excellent visibility of 15–30 m. Reef sharks, barracuda, turtles and diverse fish life are listed. The combination of wall and bommies gives the dive shape: divers can follow the wall, then swing out to the bommies that extend from it like fingers – perhaps the 'arm' of the name – before returning.

Gorgonian fans on the wall and bommies indicate regular current, and the large Porites colonies, some likely centuries old, add scale. The guide warns that current can be problematic and recommends slack water; the snorkelling is excellent but current-prone. For divers, this is a site to plan around the tide, and to dive with a skipper who knows the reef.

Tina's Arm is visited by liveaboards and private charters working the outer reefs east of the Whitsundays rather than by scheduled day trips. Its clear water and structure make it one of the more attractive dives in the Fairey–Bait–Hardy group for experienced divers. Coordinates are approximate, and its condition after Cyclone Debbie and later bleaching is not documented in the sources reviewed.

Photographers should bring a wide-angle lens for the fans and Porites, and plan the dive so the current carries them along the wall rather than across open water between bommies. Snorkellers on board should stay close to the boat, as current can build quickly when the tide turns.

Boat only. Fairey Reef lies on the outer Great Barrier Reef near Bait and Hardy reefs – roughly 1.5–2 hours by fast dive boat from Airlie Beach (Coral Sea Marina/Port of Airlie) or from Hamilton Island marina. Explore Group runs Great Barrier Reef scuba day trips to Bait Reef from both Airlie Beach and Hamilton Island; Whitsunday Dive Adventures also lists Bait Reef, and overnight/liveaboard vessels from Airlie include it.

Parking at Airlie is available near the marinas. Private vessels must use public moorings (Bait Reef is a green zone with no-anchoring areas) and need a settled forecast for the open-water crossing.

Fairey Reef and its neighbours are outer-shelf reefs fully exposed to the south-east trades (15–25 knots April–September). The large Reefworld catamarans run in most weather, but the crossing is rough in strong winds and diving can be restricted; smaller charter boats need a settled forecast. Hardy Reef's lagoon drains through a deep channel (about 60 m) beside the pontoon, and strong tidal currents run along the reef edges and through the gaps between Hardy, Line, Sinker and Fairey reefs, especially on spring tides and at the bottom of the tide – plan edge and wall dives for slack water.

Visibility is typically 8–20 m, up to 30 m on the outer faces. Marine stinger season (box jellyfish and Irukandji) runs roughly November to May – wear a full-length stinger suit or wetsuit with hood and gloves, carry vinegar. Cyclone season November–April; tropical lows and cyclones can close sites and damage coral (TC Yasi 2011, TC Debbie 2017).

Tina's Arm can be current-prone; visit at slack water.

Descend along the wall to 15–25 m, visit the small bommies that extend from it and the gorgonian fans, then rise over the large Porites to the reef top.

No regular day-trip operator; visited on liveaboard/overnight dive trips from Airlie Beach and private charters. Cruise Whitsundays' Reefworld is nearby on Hardy Reef.