Indoor Activities in Cardiff for a Rainy Day

The Welsh weather is a tad unpredictable (I know, I’m a Welshman).

Happily though, Cardiff, the vibrant capital of Wales, has no shortage of indoor attractions to keep you entertained.

From historic castles echoing tales of ancient times to cutting-edge science centres making learning fun, Cardiff offers a plethora of indoor activities suitable for all ages.

Whether you’re a culture vulture keen on exploring art galleries and museums or an adrenaline junkie looking for indoor adventures, Cardiff promises a diverse range of experiences.

Dive into this guide to discover the top indoor activities in Cardiff, ensuring a memorable time regardless of the weather outside.

Cardiff Castle

This just had to first on our list of indoor activities in Cardiff. This amazing Castle, an iconic landmark, stands as a testament to the city’s rich history.

Originally a Roman fort, it underwent numerous transformations, from a Norman stronghold to a Victorian Gothic palace. The castle’s interiors are adorned with intricate woodwork, murals, and stained glass, especially in the Arab Room.

The wartime shelters beneath the castle provide an immersive experience of Cardiff during the WWII blitz. The castle grounds, with their lush greenery, are a peaceful retreat in the heart of the city. Guided tours offer insights into the castle’s rich past, making it a must-visit for history enthusiasts.

Address – Castle St, Cardiff CF10 3RB

National Museum Cardiff

Located in the heart of the city, the National Museum Cardiff offers a blend of art, history, and geology. Its art collection is one of Europe’s finest, boasting works from renowned artists like Monet, Renoir, and Van Gogh.

The Evolution of Wales gallery displays a complete woolly mammoth skeleton, a testament to the region’s prehistoric past. The museum’s interactive exhibits, regular workshops, and special exhibitions make it a dynamic space for learning and exploration for visitors of all ages.

Address – Cathays Park, Cardiff CF10 3NP


Techniquest, situated in Cardiff Bay, is a beacon of interactive science education. With over 120 hands-on exhibits, it demystifies complex scientific principles for visitors of all ages. The planetarium offers captivating shows, transporting visitors across galaxies.

Regular workshops, tailored for various age groups, ensure that learning is always fun. Whether it’s understanding the mechanics of a bubble or the intricacies of DNA, Techniquest makes science accessible and engaging.

Address – Stuart St, Cardiff CF10 5BW

St Fagans National Museum of History

A short drive from Cardiff’s centre, St Fagans offers a unique journey through Welsh history. Set within the grounds of a 16th-century manor, the museum features over 40 historical buildings, each telling a tale of Wales’s architectural and cultural evolution.

From Iron Age roundhouses to a 20th-century prefab house, visitors can experience the daily life of Welsh people through the ages. Craft demonstrations, such as blacksmithing and baking, add to the immersive experience.

Address – St Fagans, Cardiff CF5 6XB

Cardiff Story Museum

Situated in the historic Old Library building on The Hayes, the Cardiff Story Museum unravels Cardiff’s transformation from a small market town to Wales’s bustling capital.

Interactive displays, personal digital stories, and artefacts provide a comprehensive understanding of Cardiff’s diverse communities, its maritime history, and its industrial past. Special exhibitions, often curated in collaboration with local communities, ensure a fresh perspective on every visit.

Address – The Old Library, The Hayes, Cardiff CF10 1BH

Chapter Arts Centre

Located in Canton, Chapter Arts Centre is a vibrant hub for the arts. It not only screens indie films but also hosts art exhibitions, live performances, and boasts a bustling café-bar.

The centre is a space where art, cinema, and community come together, offering a holistic entertainment destination. Regular workshops, film festivals, and community events make it a dynamic cultural space in Cardiff.

Address – Market Rd, Canton, Cardiff CF5 1QE

Motorpoint Arena Cardiff

Strategically located on Mary Ann Street, the Motorpoint Arena is Cardiff’s premier venue for live entertainment.

With a seating capacity of over 7,000, it has hosted global icons from the worlds of music, comedy, and sports. Its state-of-the-art acoustics and lighting ensure a memorable experience for attendees. From concerts to exhibitions, the arena offers a diverse range of events throughout the year.

Address – Mary Ann St, Cardiff CF10 2EQ

Escape Reality

Located in the city centre, Escape Reality offers a blend of entertainment and challenge for visitors looking for indoor activities in Cardiff. Each escape room, themed from heist scenarios to haunted tales, challenges participants’ wit and teamwork.

With intricate clues and captivating storylines, it’s a race against time, making it a thrilling group activity. It’s an immersive experience that tests problem-solving skills and teamwork.

Address – 6-7 St. John Street, Cardiff CF10 1GJ

Boulders Indoor Climbing Centre

A short drive from Cardiff’s centre, Boulders offers authentic climbing experiences for both novices and seasoned climbers.

Mimicking real rock textures, its walls challenge climbers with varying levels of difficulty. Expert instructors ensure safety and provide training sessions, making it a popular choice for corporate outings, school trips, and family adventures.

Address – St Catherine’s Park, Pengam Rd, Cardiff CF24 2RZ

The Millennium Centre

An architectural marvel in Cardiff Bay, the Millennium Centre stands as the epicentre of performing arts in Wales. Its bronze façade, inscribed with poetry, is instantly recognisable.

The venue hosts a plethora of performances, from operas to ballets, and is home to several arts organisations, ensuring a cultural feast on every visit. Its state-of-the-art facilities make it a preferred choice for international productions.

Address – Bute Pl, Cardiff Bay, Cardiff CF10 5AL

Escape Reality

Located in the heart of Cardiff, Escape Reality is a thrilling escape room experience that challenges the mind and tests teamwork skills.

Each room, meticulously designed with intricate details, offers a unique theme and storyline, ranging from heist scenarios to haunted tales. Participants are given a set time to solve a series of puzzles and riddles using clues, hints, and strategy to unveil the secret plot and escape.

It’s an immersive experience that’s perfect for families, friends, and team-building events, ensuring a memorable time filled with suspense and excitement.

Address – 6-7 St. John Street, Cardiff CF10 1GJ

Cardiff Indoor Flea Market

Situated in Tremorfa, the Cardiff Indoor Flea Market is a treasure trove for antique lovers and bargain hunters. Spread across a vast space, the market boasts a diverse range of collectibles, vintage furniture, retro fashion, books, and more.

Each stall offers unique items, making every visit a new adventure. The market’s friendly atmosphere and the thrill of discovering hidden gems make it a popular destination, especially on rainy days, when indoor activities in Cardiff are a major priority.

Address – Clydesmuir Industrial Estate, Tremorfa, Cardiff CF24 2QS

Cardiff International White Water

Nestled in Cardiff Bay, Cardiff International White Water (CIWW) is an adrenaline-pumping adventure hub. It offers a range of water-based activities, from white-water rafting to indoor surfing on the FlowRider machine.

The centre’s state-of-the-art facilities ensure a thrilling yet safe experience for participants of all skill levels. Expert instructors guide visitors, ensuring they make the most of their adventure. Whether it’s tackling the rapids or trying out canoeing and kayaking, CIWW promises an unforgettable experience.

Address – Watkiss Way, Cardiff CF11 0SY

Go Air Trampoline Park

Located near Llanishen, Go Air Trampoline Park is a haven for fun-seekers. This expansive indoor space, filled with interconnected trampolines, offers a range of activities, from open jump sessions to dodgeball courts and foam pits.

The park also hosts fitness classes, ensuring a workout that’s both fun and effective. With dedicated toddler zones and adult jump sessions, Go Air caters to a wide age range, making it a perfect destination for family outings.

Address – Ty Glas Rd, Llanishen, Cardiff CF14 5DU

Hollywood Bowl

Situated in the vibrant Red Dragon Centre in Cardiff Bay, Hollywood Bowl offers a modern bowling experience. With state-of-the-art lanes, themed bowling nights, and an extensive arcade area, it ensures a comprehensive entertainment package.

The venue’s diner and bar add to the experience, making it suitable for family outings, parties, and corporate events. Whether you’re a seasoned bowler or a newbie, Hollywood Bowl promises a fun-filled time.

Address – Red Dragon Centre, Hemingway Rd, Cardiff CF10 4JY

Official Wales and Cardiff Tourism Sites

Dale Shelabarger

Dale is the owner and founder of Cottages to Rent which he launched back in 2005. As well as promoting holiday cottages, Dale blogs regularly about top UK holiday destinations, visitor attractions and places of historical interest.