Balding Bay is a small, secluded bay tucked between Horseshoe Bay and Radical Bay on Magnetic Island's north-east coast, better known to walkers as an informal beach reached by a bush track. For divers, the North Queensland Underwater Explorers Club uses it as the reliable alternative when Orchard Rocks, a few hundred metres further east, is too rough or crowded with fishermen. The dive follows a wall that runs along the western shoreline, starting at a sharp, 90-degree boulder point.

It is modest in scale – about 7 m deep – but sheltered: the club reports no significant current or swell and visibility of 7–8 m in ideal conditions, which is good for the island. Granite boulders and coral growth make up the wall, with overhangs where juvenile painted crayfish shelter, and mid-sized coral trout patrol the reef. Small reef fish, nudibranchs and sea stars round out the list.

The club notes an unusual collection of lost gear on the bottom – stainless-steel ladders, telescopic gaffs, fishing rods and reels, weight belts, anchors and mooring hooks – a reflection of the boats that use the bay on sunny weekends. That boating traffic is the site's main hazard, and a towable dive flag is advised. Balding Bay is an easy, shallow boat dive suited to newer divers or as a relaxed second dive, and a pleasant snorkel for those who walk in.

It has no facilities of its own and no operator runs it; Pleasure Divers' guided dives stay in Alma and Geoffrey bays. For island visitors with access to a small boat, it is a quiet corner worth an hour in the water.

Boat is the practical option. Launch at the Horseshoe Bay ramp and run east around the headland to Balding Bay (5–10 minutes). Anchor on sand off the western shoreline and drop in near the sharp 90-degree boulder point where the wall begins.

The bay can also be reached on foot via the Radical Bay–Balding Bay walking track from the end of Radical Bay Road, but carrying scuba gear over the track is impractical; snorkellers can walk in.

Magnetic Island's bays are sheltered from different winds depending on which side they face. The dominant south-east trade winds (15–25 knots, April–September) chop up exposed eastern and southern bays and stir up silt, so the island's best diving comes in the calmer months of August–December and on mornings before the sea breeze. Visibility is usually 3–8 m and occasionally 10–15 m; it drops sharply after strong winds, big spring tides and wet-season rain (January–April) when Ross River and Burdekin run-off discolour the water.

Dive at slack water, ideally high tide. Sargassum seaweed blooms in the hotter months can smother shallow reef flats. 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.

Stinger nets are installed at Alma Bay, Picnic Bay and Horseshoe Bay in season. The bay is protected enough that NQUEC reports no significant current or swell; it is the club's alternative when Orchard Rocks is rough.

Start at the sharp boulder point on the western side, follow the wall along the shoreline at 5–7 m, turn at half gas and return along the base or top of the wall. Deploy a towable dive flag on sunny days when boats visit.

No regular operator; NQUEC club dives as the fallback site for Orchard Rocks. Nearest dive centres for gear hire, fills and local advice: Pleasure Divers Magnetic Island, Adrenalin Snorkel & Dive.