Section navigation


This problem has all the goods - sustained, with slappers, some long static moves with a few dynos thrown in for good measure. As with most problems at this crag it comes with a committing finish!

Sit Start at the common spot with 'Pump Up The Jam'. using the slopers move up and then right staying as low as possible. From here power up to the lip above the embedded boulder. Keep curving around the boulder towards The Underverse

Top out above project 8 and 9 Just left of The Underverse

NOTE - The Underverse is off limits!

Love the pumpy, sustained V5

Access Issues:© inherited from Balls Head

Climbing of any kind (including bouldering) has been banned by North Sydney City Council throughout the Ball's Head Reserve since 1996. If you climbing here you are breaking the law, and risk being prosecuted. Don't do it.

Please read the link below provided by council about climbing and areas of cultural significance in Sydney:

Ethic: inherited from When Crags Collide

When Crags Collide is a bolt free environment. Bolting will not be tolerated by the developers and more than likely North Sydney Council as well.

When Crags Collide was developed as pure bouldering for the love of bouldering. The developers want it to remain this way.

It may be tempting to bolt the highballs or even put some sneaky carrots in at the top. The developers did discuss this as an option and decided seeing this is a popular look out, and the base is on a very popular hiking track, that bolts would only detract from the natural beauty of the area that non-climbers come to enjoy.

There's one rusted forgotten bolt at the top of Lindfield With A Water View from several decades ago. This is a mark oh history but if any other bolts are found here they'll be chopped by either the developers or once again, more than likely North Sydney Council.


Route History:

There is no known route history.


Located in The Underverse Next Door approx:
Lat/Long: -33.845909,151.193767

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

Route Grade Citations

V5 Community registered grade
**Ranger Dave
V5 Ranger Dave

Route quality

Route quality

Overall quality score: 83%

Lead Styles

Lead styles pie chart

Comments keywords

solid sustained good super great awesome reachy

Learn about creating circuits.

Activity Configure

Check out what is happening on Shake Your Hips Like Battle Ships (note there is an unresolved system issue where ascents logged before 2010 are not displayed in the stream below). If you just want to see beta then click on view ascents with beta.