The sprawling boulder field beneath the Milestone Buttress crag contains a fine selection of intense boulder problems. There is a lot of rock here and much of it does not work that well for bouldering (too small, bad landings etc) but that which does work gives some of the best problems in the valley.
Further right the boulder field spreads across the hillside, shifting rock type from rhyolite to some top quality dolerite. Again you will need to search out the good stuff amongst the chaos, but it is worth the effort. Finally a couple of good boulders (The Lunar Block and the Seren Block) can be found further right again close to the path running up from the right side of the enclosed car park.
The landings are not always perfect, consequently lone visits are not recommended. With a few pads and a spotter a more relaxed session can be had.
Across on the other side of the valley is another fine little venue, with a small collection of problems lying close to the infamous offwidth George’s Crack. There are also a number of excellent challenges to be found in a nearby cluster, 10 minutes walk across the hillside to the left. This latter area, named after one of its key problems (Lily Savage 7B), has several important lines and now includes the super hard Madame Allure 8B. A little further down the valley at the left side of Carreg Mianog, another 8B, the impressive Isles of Wonder, can be seen.
In damp weather moving around the boulder field can be a bit slippy and treacherous, so save your visit for a dry period. There are no major seepage issues, but this is a fairly shady place so the rock is sometimes slow to dry after rain. Evening sun happens during the summer, but in the winter it can sometimes be too cold to climb here. The Lily Savage area gets any sun that is going so does dry quicker.
The boulders can be reached from the layby beneath Milestone Buttress or from the enclosed car park farther to the right.