3 adults-only Halloween events near Boise with 2026 dates confirmed on their official sites. The earliest to open is Boise Halloween Bar Crawl, on October 24. Each venue sets its own age rule, shown on every listing: bring ID.
Adults-only Halloween night at the old state prison: haunted cell block and infirmary walk-throughs, paranormal and history performers, music and drinks for purchase.
Ticketed downtown Halloween pub crawl with drink specials at participating bars and a costume contest; two Saturday dates.
Organized Halloween bar crawl through downtown Boise with check-in at Cactus Bar.
Boise Halloween Bar Crawl, Crawl With US Boise Halloween Bar Crawl and Fright Nights: Adult Night. Each has its 2026 dates, hours and prices on its own page.
The earliest in this guide is Boise Halloween Bar Crawl on October 24, 2026.
21+: Boise Halloween Bar Crawl and Crawl With US Boise Halloween Bar Crawl. 18+: Fright Nights: Adult Night. Age rules are from each official site.
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