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Your Bucket & Spade List: Top 10 Summer Things to Do in Cardiff

Summer has arrived — and Cardiff is buzzing with sunshine, festivals, food, and fun. Whether you're soaking up rays in the park, strolling the bay, or heading to a live gig, the Welsh capital is packed with unforgettable things to do this season.

From al fresco dining and outdoor adventures to beach escapes and cultural must-sees, we’ve rounded up the top 10 ways to make the most of summer 2025 in Cardiff.

Got little ones in tow? Check out our guide to things to do with kids in Cardiff for family-friendly days out that’ll keep all ages happy.

Craving coastal vibes? You don’t need to go far — see our roundup of the best beaches near Cardiff for paddle-perfect day trips just a short drive away.

Planning a summer staycation? Explore our picks for Cardiff staycations to turn a weekend visit into something a little more special.

Need a place to stay? Browse our Cardiff accommodation guide for everything from boutique hotels to budget-friendly bases.

Ready to discover Cardiff at its sunniest? Let’s dive into your ultimate summer bucket and spade list.

KidzStory Summer Foam Party – Cardiff’s Bubbliest Beach-Style Event

KidzStory Summer Foam Party – Cardiff’s Bubbliest Beach-Style Event

All You Need to Know: This summer, KidzStory brings the ultimate Kids Summer Foam Party to Lo Lounge, Cardiff Bay on Sunday 20 July & Sunday 10th August (12–4pm, last entry 1pm). Expect DJ tunes, dancing, giant Jenga & Connect 4, and a foam-filled play zone that’ll leave kids and grown-ups grinning from ear to ear.

Why Visit This Summer:

  • Epic foam fun – imagine thousands of tiny bubbles you can jump, roll, and dance through!
  • Games and tunes – DJ beats, giant Jenga, Connect 4, plus space to play and make a splash
  • Family-friendly zone – perfect for toddlers and kids of all ages to let loose in a safe, supervised environment

Pro tip: Arrive before 1pm (last entry) to maximise the bubbling fun—early start means more foam time and less crowd!

Must-Know Info:

Where & when is the event?
It’s at Lo Lounge, Cardiff Bay, on Sunday 20 July, running from 12pm–4pm with last entry at 1pm

How do I get tickets?
Tickets are available via Fixr—grab them early to secure your spot in the foam-packed fun 

Is it suitable for all ages?
Yes! The party is designed for children of all ages, with a safe and supervised foam zone ideal for toddlers to primary ages.

Can adults join in?
Definitely! Parents and caregivers are welcome—and probably just as excited to dive in as the kids.

Do we need to bring anything?
Bring a change of clothes, towels, and maybe goggles—expect to get wet and bubbly!

What else will be there?
Aside from foam, enjoy giant board games, DJ music, and a fun, festive atmosphere—great for family selfies!

Find out more

Cardiff Hop-On Hop-Off Bus Tour – City Sightseeing Made Easy

All You Need to Know: Explore Cardiff your way with a 24-hour hop-on, hop-off bus tour run by City Sightseeing. Starting from outside Cardiff Castle, the open-top red double-deckers loop through 11–13 key stops, including Millennium Stadium, National Museum, Cardiff Bay, and Mermaid Quay

Why Visit This Summer:

  • Sightsee at your pace: Jump off at any stop to explore, then hop back on later—ideal for a relaxed family day or solo city adventure
  • Engaging commentary: Audio guides in 7 languages + live English narrators bring Cardiff's history and culture to life 
  • Iconic landmarks covered: Visit Castle, Bay, Stadium, museums, and more, all accessible via one easy route
  • Two-day validity: Your ticket is valid for two consecutive days, giving flexibility for exploring further afield 

Pro tip: Start early from Cardiff Castle to enjoy cooler air, fewer crowds, and a full day of sightseeing. Or hold your ticket for the second day—perfect if you're combining with nearby attractions like St Fagans or Roath Park.

Must-Know Info:

How long is the full loop?
About 50–55 minutes for a complete circuit, with buses departing roughly every 30–60 minutes 

What stops are included?
Typical stops are Cardiff Castle, National Museum, Millennium Stadium, Techniquest, Craft in the Bay, Mermaid Quay, Lloyd George Avenue, Queen Street, and Principality Stadium 

Is the ticket valid for more than one day?
Yes, your pass is valid for 2 consecutive days, letting you explore Cardiff at your leisure 

Is it wheelchair/stroller friendly?
Yes, buses and stops are wheelchair and stroller accessible, making it suitable for all ages and abilities 

Are refreshments included?
Food and drink aren’t included, but you’ll find plenty of cafés and restaurants at hop-off points like Mermaid Quay and Cardiff Bay.

Can I book online or on the bus?
You can book online (often cheaper) or buy onboard via contactless—just note some discounts apply only online

What about cancellation?
Cancel at least 24 hours in advance for a full refund—no refund for last-minute cancellations

Find out more
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