posted by [identity profile] bugshaw.livejournal.com at 03:32pm on 31/07/2015
I'm not sure how they work it out, S found the event. For next year you could check out this listing at the beginning of July to find out when the events are (they have loads of other interesting-looking things too)
http://www.wildlifebcn.org/whats-on

This year they had two 8-10pm Chalk Cheese and Glowworms events and a 10-11pm glowworm survey on 29 July, they're hard to see even when dark until you spot the twinkle in a bush. I know nothing about how long glow season lasts.


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