The main Mushroom is one massive extrusion of red sandstone 5m at is smallest and 8m at its highest with the smaller 'Fern Boulder' to one side and the 'Flower Power' and project faces to the other. The Mushroom is made up of a steep (30-40degree) overhanging face of banded jugs. Excellent for traversing and warming up. With the North wall boasting a slaby top half.
Other erratics are scattered deeper though the wood and some promising larger blocks 80m north up the road.
The tops of all boulders and most of the mushroom were very vegetated until June 2013 when a group of Edinburgh based climbers gardened and cleaned up several new lines. The gardening also allowed the original problems on the fern boulder to be topped out. Original lines are listed as are the new 'directs'.
On listed problems most loose stone is now setting and only the thinnest flakes (3-5mm and below) are likely to snap. Obviously its sandstone so more likely to snap after rain. Midge can be a real issue in the summer but a midge net and a fire in the evening will see them off! Camping below the main face would be possible but a much more pleasant pitch can be found 15m up on the hillside (follow the wooden walkway and steps.
There are still a number of lines to see first assents. The lastest addition of "We Are the Champignons" f8A is the hardest line to date, added by Dan Varian in 2016.
Well worth a vist, I'll be back for sure.
Walk, hitch or take a taxi from Brodick 3 miles north on the A841. You will pass the brewery and then the castle entrance on your left hand side. Continue past an entrance sign posted 'Merkland Wood Walks' and a disused carpark on the left. Shortly after there will be a gravel lay by on the right. Get the taxi to drop you off here. Walk north on the road for only about 20m and the mushroom can just be seen though the trees on the left. Jump over the wall (You'll know your right if there are two very large sandbag/construction sacs on the floor over the wall) and head into the trees.
Rock pools and the sea are on the other side of the road and great for a dip/wash after a days climbing. If you head North up the road another 50m there is a small beach which is nicer if you prefer sand.