The Underworld




Mostly steep sport climbing though some of the original lines may need some trad gear. Shady, so generally cool in summer and cold in winter, though well protected from wind.

© (Ashy)

Access issues inherited from Medlow Bath

Be wary of where you park, ensuring not to block any driveways or leave any rubbish. The crags are located on land owned by The Hydro Majestic, so act appropriately.


The Underworld is tucked in a small gully underneath The Hydro Majestic and might be considered the "back wall" of the Sporting Complex buttress. Continue around from the top of SC then drop down into gully following track to the bottom. Most routes start on the elevated tier on the right. There are some much easier (20ish) vertical routes at the left end, on the 12m wall below the starting ledge of 'Julius Caesar'.

© (Ashy)

Ethic inherited from Blue Mountains

Although sport climbing is well entrenched as the most popular form of Blueys climbing, mixed-climbing on gear and bolts has generally been the rule over the long term. Please try to use available natural gear where possible, and do not bolt cracks or potential trad climbs. If you do the bolts may be removed.

Because of the softness of Blue Mountains sandstone, bolting should only be done by those with a solid knowledge of glue-in equipping. A recent fatality serves as a reminder that this is not an area to experiment with bolting.

If you do need to top rope, please do it through your own gear as the wear on the anchors is both difficult and expensive to maintain.

If you have benefited from climbing infrastructure in NSW, please consider making a donation towards maintenance costs. The Sydney Rockclimbing Club Rebolting Fund finances the replacement of old bolts on existing climbs and the maintenance of other hardware such as fixed ropes and anchors. The SRC purchases hardware, such as bolts and glue, and distributes them to volunteer rebolters across the state of New South Wales. For more information, including donation details, visit

It would be appreciated if brushing of holds becomes part of your climbing routine - do it with a soft bristled brush and never a steel brush!

The removal of vegetation - both from the cliff bases and the climbs - is not seen as beneficial to aesthetics of the environment nor to our access to it.

However, the fast growing scrub can conceal walking tracks in mere months, making remote and less popular crags slightly more difficult and fun to navigate to. Some appropriately discreet pruning is a far better alternative then track braiding (which causes far more damage).

However, do so only on Council land and definitely not in the National Park. Remember, to maintain access our best approach is to 'Respect Native Habitat, Tread Softly and Leave No Trace'. Do not cut flora and keep any tracks and infrastructure as minimal as possible or risk possible closures.


View historical timeline

Developed and forgotten about it then received a new look and a bunch of mostly hard new sport routes went up.

© (Ashy)


Some content has been provided under license from: © Australian Climbing Association Queensland (Creative Commons, Attribution, Share-Alike 2.5 AU)


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Grade Route

Unknown first route, seems to be about a 19. Has not had much traffic and lots of loose blocks.

Excellent, and unusually steep for the Blueys.

Start: Start towards the left end of the elevated ledge.

FA: G. Collum, 1994

This is the splitter crack out the humungous roofs. Strange that it got bolted, though you also need supplemental trad. Now has a double ring bolt lower off.

FA: G. Child, 1994

Up GR for about 8m, then head 10m right along the break/wall thing out the huge roof to the lip. The gear is mostly bad old bolts and pitons, with perhaps some trad and 1 or 2 new bolts where the new lines cross the traverse.

Start: Start as for 'Gravel Rash'.

FA: G. Child & M. Taylor, 1993

Start: On blunt arete on the right side of the steps.

FA: Z Vertrees, 2010

Tackles the obvious prow near the centre of the wall, then through the roof and finish along left at the lip

Start 3m right of the prow and climb the black shale tufa feature, then trend left through the roof and back right to finish over the lip. Back jump to clean.

FA: V Day, 2010

Start up Mississippi Moonshine then head across left to join Assassins.

Start up Mississippi Moonshine then step left and finish up the project.

Bouldery start off the diving board. Grungy top section.

Start up the bouldery start of The River Styx, traverse about 8m left to finish at a U-bolt and fixed wire just up on the headwall.

FA: H Sutton, 2010

The long traverse starting as for The River Styx, then finishing at the anchors of Prohibition. Great jugging along the break.

FA: H Sutton, 2010

Start: Directly up the blunt arete

FA: E Jurg, 2010

Start: Start 4m R of JC.

FA: V Day, 2009

FA: Tom O'Halloran, 17 Mar 2015

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