I seem to remember you just have to think about the other Guides all over the world. We had rallies too! to commemorate it. I remember a green country park, rain lashing down, sheltering under a tree whilst sharing a packet of digestive biscuits with a friend. Soaking wet and thoroughly enjoying it. 
What was directly across the road from the school you went to?
Today the High Court has agreed that children can be given puberty blockers.


Brings back some memories.