The first round of the national Belgian Boulder Cup, on the federation's calendar. The date is provisional.
As Klimzaal Blok announced it. Plans change, so check with the wall before you go. Something wrong? Let us know.
€25
Blok's big annual bouldering comp, with qualifying waves through the day for youth, amateur and pro climbers, a final from 20:30 with a DJ, and an afterparty. The hall is closed on 22 and 23 October while the problems are set.
A round of the Regional Climbing Youth Cup, the Flemish bouldering series for young climbers in the U11 to U19 categories. Sign up in advance on Etto Climbing, or at the hall from 09:00; the fee is paid on the day.
€5 if you wear glitter
Beest Boulders Antwerpen, Antwerp, Belgium7.0 km away
An ABBA-themed evening of climbing and dancing under disco lights. Entry is €5 for anyone who turns up wearing glitter.

Klimzaal De Stordeur, Leuven, Flemish Brabant, Belgium40 km away
A stop on Blue Ice's harness demo tour, where climbers can try the Vista and Cuesta harnesses on the wall. The time hasn't been announced; the tour's stop at Klimax ran from 17:00.

Pink Peaks, Grimbergen, Flemish Brabant, Belgium29 km away
A Halloween night of UV climbing and lead climbing: come in fancy dress and get a free drink.
Evolution Verticale, Woluwe-Saint-Lambert, Brussels-Capital Region, Belgium38 km away
An evening session with the lights turned off: climbing in the dark by head torch, with fancy dress encouraged.

Free in a Halloween costume
Rhino Boulder Gym, Ghent, East Flanders, Belgium48 km away
A Halloween night with the main lights off and the gym lit by blacklight holds, plus a set of scary slabs. Entry is free for anyone in a Halloween costume.

€15
Klimkaffee Mechelen, Mechelen, Antwerp, Belgium20 km away
Klimkaffee's Halloween party: 20 new routes to climb in costume, a costume contest with a month's membership as the prize, then dancing to Party Roulette.
