★★ Outer Limit 18

The original route on 'The Central Slabs', a diagonal ascent from left to right. Start as for Jubilate.

1. 35m (18) - Ascend the short crack to a bushy ledge. Scramble up to a grey, flaky area (bolt). Traverse left along the flake then up and left past a couple of bolts, then up the shallow water runnel to a ledge (double bolt belay). Although still climbable, exfoliation all up the water runnel makes this pitch less enjoyable than before the 2020 fires.

2. 35m (3) - Traverse 20 metres right along a ledge system until it peters out, continue around a bulge and follow more ledges to beneath a vertical flake formed crack (double bolt belay shared with 'Closer In' et al.).

3. 42m (18) - Up the flake formed crack for 6 metres, then traverse right (well below the first bolt on 'Closer In') and then up and left to a ledge with small gear and a very dubious bolt. Up over ledges, a corner and mossy slab to a ledge and bush (or continue on to the second belay (double bolts) on 'Closer In' - this is the belay marked in the topo).

4. 24m (8) - Climb the crack, trending left for about six metres, then traverse left for about 12 metres and up into a short V-groove to double bolt belay.

5. 18m (18) - Climb the corner and crack above to the left side of the overhanging yellow rock, across the gap and onto a large ledge.

6. 25m (16) - Climb up right for five metres onto a flaky ledge, then up left to another. Continue over a short wall to the top.

The ethic at Booroomba is generally staunchly traditional. Most climbing goes either entirely on gear or gear with bolts for those walls where there is insufficient gear to protect climbs. Climbs are occasionally rebolted, but retro-bolting would be considered vandalism of the lowest order.