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Some pumpy problems involving heel hooks and dynos on good rock and an easy overhang! A solid work out if repeated several times.

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. Please don't jeopardise future attempts to restore access by flouting the ban.


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.


View timeline of historical ascents

Sir Brendon Flanagan and the Czech Princess Radka put some fun problems up here one amazing afternoon. This day Radka revealed her fear of spiders and Brendon learnt wearing long pants while developing is a very good thing. Why? Because when a solid footer unexpectantly brakes off your pants legs will protect your shins.

This crag is a product of the great bouldering boom!

Chalk up, climb on and live the dream!

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

Start on the far left of the overhang. Using the two rails, traverse right until you're under the semi circle vertical shaft. Make your way up and out via the shaft.

V0+ * Vaako's A Pussy Boulder 2m

Start .5 meter right of From 0-700 Degrees In Mere Seconds exit. Using the horizontal crack, match your hands and exit up.

V0 ** What's a Problem? Boulder 2m

Start on the left of the right side overhang. Reach up, grab the crimpers and exit up.

Project 4 Boulder 2m

Start on the right side of the right overhang. Starting on the nose of the overhang exit up.

V0+ ** Straight Up Boulder 2m

Starting right of Project 4 on the next boulder. Sit start nice and low then exit up.

V2 * Pump up the Jam Boulder 3m

Sit Start on the left side of the arete. Love the heel hook and pump up the corner without going left or right. Good holds and a touch of strength required

V3 ** Overlord Boulder 3m

Sit Start just right of the Arete, with a left heel hook at about head height. Powerful Moves to slappers up above. Finishes on some solid holds as a reward for your labor


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

V0+ * The Froggie Boulder 2m

Start like a frog to the right of Project 6. Using the friendly holds exit up.

4 * Always good BoulderProject

Sit start under the face, loving the right heel hook. Power up and to the left using the slim crimper/Sloper above you. After that enjoy some long reaches and a precarious top out.

FA: dwebster, 2008

* Project 9 BoulderProject

Sit start under the wall 1m left of The Underverse and power straight up. Uber Pump and dedication, plus some interesting body twists.

OR - just campus it!

NOTE - The Underverse is off limits



Check out what is happening in The Underverse Next Door.