Calum Hudson did some work here in 1992–93, but it was Steve Carr who almost single-handedly developed this crag in 1997. The crag had a makeover in 2018, during which time many of the routes were extended to the tops of the walls - often being aggressively cleaned and retrobolted. Many new sport routes have been opened up. Caution needs to be exercised with some holds as rock that may appear stable can sometimes flake off under pressure. That said, the crag is cleaning up very nicely. The bush around the base of some routes tends to take over in time and needs occasional pruning. Bolts are stainless steel 10 x 75 mm.
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Take the road from Port Chalmers township over the hill towards Long Beach. Turn off left at the ‘Osborne’ sign soon after passing Pūrākaunui School and descend to Pūrākaunui Inlet. Drive around the left side of the inlet, passing the turnoff to the Osborne settlement (hidden up the side road) until reaching a car park at the road end. A lake has recently formed on the track that leads to the crag and has become impassable through most of the winter months so you will need to park at the road end and walk ten minutes to the crag. Don't tempt thieves by leaving any valuables in your car.