Bouldering with the lights off under UV, with glowing blocs, bright outfits and face paint, in two slots (18:30-20:30 and 20:45-22:45). Ages 14 and up; under-18s need a junior boulder sign-off or a signed-off adult. Book ahead.
As Oakwood Climbing Centre announced it. Plans change, so check with the wall before you go. Something wrong? Let us know.
Blue Spider Indoor Climbing, Guildford, England, United Kingdom23 km away
Final round of Blue Spider's autumn bouldering series on a new set, with junior (under 16), open and veteran (45+) categories and prizes for the top scorers. Scorecards from reception, due back by 10pm on the closing day.

£33
Substation Brixton, London, England, United Kingdom47 km away
A climbing date night for singles run with Haystack: guests are matched into groups, climb from about 7pm to 9:30pm, then carry on in the café-bar. Tickets are sold through Fatsoma.

£10 early bird (until 23 Oct), £15 standard, free for members
Climbing Co Fulham, London, England, United Kingdom42 km away
Halloween bouldering under UV light with glowsticks, a DJ and fun climbs for under-16s, who must be supervised (1 adult to 2 children; 1:1 for ages 5 to 7). Booking needed.

Early bird £5 members, £18 guests
Substation Brixton, London, England, United Kingdom47 km away
The annual Halloween party with glow-in-the-dark climbs, themed challenges, a DJ, food and drink offers and prizes for the best costume. Ages 14 and over; 14-17s need a supervising adult or the 14-17 assessment.

The Nest Climbing, Hayes, England, United Kingdom28 km away
Halloween night at the wall with spooky climbs, challenges and prizes for the best costumes, plus live music, games and pizza.

£10 early bird (until 23 Oct), £15 standard, free for members
Climbing Co Fulham, London, England, United Kingdom42 km away
Evening Halloween bouldering party for over-16s, with UV paint, glowsticks, a DJ and fun climbs. Booking needed.
