Predators Playground is a shallow site at Holmes Reef that marinelife.org.au describes as the main shark-feeding area, using a floating cage, at about 9 m, with small bommies nearby. It dates from the era when several Coral Sea operators ran regular shark feeds at Holmes, Flinders and Osprey. Today the best-known feed is at North Horn on Osprey, and no current operator material describing a feed at Holmes was found.

The setting is a sandy area at around 9 m with small bommies, a practical arrangement for a feed because divers can settle on or around the sand with good light and the sharks can be seen clearly as they arrive. A floating cage, presumably holding bait, was the centrepiece. Grey reef, whitetip and silvertip sharks are the likely species, as they are at other Coral Sea feed sites, and potato cod and trevally commonly join such feeds.

Without a feed, the site is a shallow, easy dive over sand and small bommies. Expect garden eels, whitetips resting on the sand, turtles, and the usual reef fish around the bommies. Visibility at Holmes is typically 20–40 m.

Shark feeding in the Coral Sea Marine Park requires specific authorisation, and this record should not be read as implying that feeds continue here. Divers interested in a shark feed should book an Osprey itinerary for North Horn. The entry is retained for completeness because the site is historically documented, and it should be updated if current information becomes available. As a plain shallow dive it is a pleasant, low-effort option between deeper wall dives.

Liveaboard only. Mike Ball's Spoilsport includes Holmes Reef on its 7-night Coral Sea exploratory (Cairns return), the 7-night Yongala & Coral Sea expedition (Townsville to Cairns) and the 10-night Coral Sea Odyssey; the overnight crossing from Cairns is about 240 km of open ocean. Holmes is normally allocated a day on these itineraries.

Predators Playground was historically used by operators running shark feeds from a floating cage; whether feeds are still conducted here is not confirmed.

Holmes Reef is a pair of isolated Coral Sea atolls about 240–250 km east of Cairns with no land for shelter. Dive the World calls it a fair-weather destination: SE trades over about 20 knots (common June–August) make the crossing and surface conditions rough, although the lagoons and western sides offer some protection. Currents are normally gentle but can be strong in the channels and on the ridges, especially on a falling tide.

September–December usually has the calmest seas and 20–40 m visibility; December–April is cyclone season.

If a feed is run, follow the guides' positioning exactly and remain still. Otherwise explore the small bommies on the sand at 9 m and the reef edge nearby.

Historically used for shark feeds by Coral Sea operators; current use unconfirmed.