Parkrun notes for visually impaired and guide runners
Amersham: beautiful setting, nice cafe, narrow and trails but not so busy as to be a problem
Dulwich: fast, wide and flat
Finsbury Park: wide start and wide first 1k, good surface, good cafe, super friendly, one short hill
Gladstone; popular with VI runners, not sure why, narrow start uphill on poor surface, up and down, cross bridge with other park users, nice cafe at top of park
Wanstead Flats: tough, narrow, trail surface, one dog walker with two dogs across path to whom I politely said excuse me a number of times as we approached, we had to come to a complete stop and she told us off for not sharing the park