🎃 Wales – Free & Low-Cost Halloween / Half-Term Events 2025

Discover family-friendly, spooky/fun events across Wales during the October half term. Use this as a guide — always check event pages for updates.

• Halloween Nights – St Fagans National Museum of History — Cardiff
  29–31 October 2025
  The museum comes alive after dark with Welsh legends, glowing lanterns, eerie lighting, crafts and storytelling. Cost: Regular admission (free for members)
  Event info & dates
• Halloween Fun – Cadw — Various Cadw sites
  Thursday 30 October 2025, 11:00–16:00
  Halloween trail, spooky crafts, badge making and free drop-in activities. No booking required.
  Cost: Free for juniors / Cadw members; standard for adults (badge making may carry extra charge)
  Event page
• Fuel Rock Club Halloween Market — Cardiff
  Sat 25 October 2025, 11:00–16:00
  A spooky / alt goth market with Halloween stalls, crafts, live entertainment and free entry.
  Cost: Free admission
  Market & festival info
• Halloween Trains – Bala Lake Railway — North Wales
  30 & 31 October 2025 (evening services)
  A ghostly train ride by the lakeside. Dress up encouraged!
  Cost: Ticketed—but evening services only; check discounted / family fares.
  Train and event details
• “Hell On Earth” Halloween Market — Cardiff (Fuel Rock Club)
  Sat 25 October 2025, 11:00–16:00
  Halloween market, music, performance, spooky fun. Free entry.
  Cost: Free entry
  Event listing
• Free / Inexpensive Holiday Activities – Powys — Powys County
  Throughout school holiday period
  Local play schemes, parks, leisure centres and community activities. Many are free or low cost.
  Cost: Varies (many free)
  Powys holiday activities
• “Terror Mountain” Halloween Experience — Wales (Various nights)
  18 October – 1 November 2025 (selected nights)
  Spooky immersive Halloween attraction across multiple venues. **Tickets are limited / pre-book**.
  Cost: Ticketed (not free) — included here for interest.
  More details

Note: Some events listed are ticketed or have fixed adult prices; always check with the organiser for free entry for children, concessionary rates or member benefits.