Edinburgh
Penicuik :
From Edinburgh, take the A702 towards Silverburn. As you near Penicuik (which lies on the A701, which runs parallel to the A702), be vigilent for small roads signposted for Penicuik. Now slow down. Look for a pub (I can't remember the name, but it's a hiker's pub!!). It is on your right. This may be a good place to park your car. Cross the road, hop the fence and start looking in that field. It is worth scouring the entire area around here. However, the best field we found was further up the road. So, from the pub, cross the road and walk in the direction you were travelling in the car. You will come to a farm house/building on the right. The field to the left of the road is the one. We found some monsters in here - in fact, they were all monsters!!! Some 15cm high, and that's no lie!!! Also, extremely potent - 20 would be a strong experience. Not exactly carpets of mushrooms, but very frequent in large troops. Truly outstanding!