Leanne's Leap is the western continuation of Submarine Rock, and Extra Divers describe it as a beautiful drift-style dive often done one-way, transitioning from drop-off to coral garden from about 10 m downwards.

The dive begins on the drop-off, where the reef edge rolls over into steep wall covered in hard corals, fans and whips, with fusiliers and anthias streaming along the face and the blue water beyond. As the current carries divers west, the wall eases into a broad coral garden of plate, table and branching Acropora and boulder corals, dense with reef fish: butterflyfish and angelfish (including the endemic Christmas Island angelfish), parrotfish, triggerfish, surgeonfish, wrasse and damsels. Turtles are common on this stretch of coast, and reef sharks, eagle rays and schools of trevally pass by. In the wet season whale sharks and mantas are possible.

What makes it enjoyable is the ease of the drift: the current does the work, the depth decreases naturally through the dive, and the coral garden at the end is ideal for a long, shallow finish and safety stop. It is a good choice for a second dive after a deeper site or cave.

Suited to intermediate divers comfortable with drifting and deploying a DSMB. Operators decide the direction and start point on the day according to the current, and on slack days the site can be dived as an out-and-back from the coral garden. Like the rest of this stretch of coast it is reliably calm through the south-east trade season.

Fly from Perth (about 4 hours, two to three flights a week, some via Cocos Islands) and hire a car – there is no public transport. Both dive centres are in The Settlement and launch their boats from the jetty/boat ramp at Flying Fish Cove, normally at about 8 am for a two-dive morning trip. From the cove the boat runs west past Smith Point and south-west along the north coast (the 'dog's back') along the coast for roughly about 25 minutes to Submarine Rock/Leanne's Leap.

There is no land access to the dive, and the vertical sea cliffs mean no exit other than the boat. Operators choose sites on the morning according to swell and wind.

On the north coast, which is in the lee of the south-east trade winds from roughly April/May to November – that is the calm, reliable season here with glassy seas and 30 m+ visibility. From about December to March/April the north-west monsoon brings northerly and north-westerly swell (and occasional cyclone-generated swell) that can make the north coast undiveable and the Flying Fish Cove ramp unusable for days; Extra Divers treat February–April as peak swell season when trips are often cancelled. Any swell over about 1.5 m from the north-west quarter usually cancels the site.

Visibility dips after heavy rain run-off from the plateau and during red crab spawning (Oct–Jan) when plankton blooms. Tides are small (about 1 m) and rarely matter, but currents along the coast can pick up without warning.

Enter at the drop-off (or at the end of Submarine Rock), drift west at 15–20 m along the wall, then rise gradually onto the coral garden at 8–12 m for the second half. Deploy a DSMB for the safety stop and boat pick-up.

Extra Divers Christmas Island – regular one-way drift, often starting at Submarine Rock; CI Wet'n'Dry Adventures – occasional.