Due to pressing family business I will be in .uk for a short visit in a couple of weeks, the beginning of which involves flying to Heathrow on a Monday morning and taking the train out of London again on Monday evening.
So: which London wall (a) has decent bouldering? (b) is easily accessible by public transport en route between Heathrow & St Pancras? (c) has not too onerous fees or red tape for one-off casual visitors?
Alo, I want one of these new Rab Boreas tops because they look ideal for Alpine multipitch rock, but the prices being asked for them in Germany are ridiculous. Are there any decent gear shops in London these days that would be likely to have them in stock?