25 fabulous free events that you can attend in September 2025

Discover the delights of the Dragonfly Festival

Nationwide, held at all nine WWT centres, throughout July until 22 September

Celebrate the wonder of dragonflies at the WWT Dragonfly Festival. Taking place at all nine WWT centres this summer, discover nature-inspired fun for all ages with activities and events, such as family pond dipping, adventure play, macro photography, and creative workshops. You can also take a guided walk to learn more about these fascinating wetland insects.

As a Boundless member, you and up to five children can enjoy unlimited access to all nine WWT centres, plus 50% off for one additional adult guest. Find out more about Boundless membership and how to join.

Explore historic sites at Heritage Open Days

Each September, thousands of historic buildings and landmarks across the UK throw open their doors for European Heritage Open Days, giving you the chance to explore hidden places and uncover fascinating stories.

To help you learn more about local history and culture, there’s a full line-up of themed events. From guided walks and expert talks to hands-on workshops, many of which are completely free.

It’s worth checking your region’s website for listings, as some events require advance booking.

Join the Great British Beach Clean

Nationwide, 20-28 September

Every year, over eight million tonnes of plastic end up in our oceans, harming marine life and polluting our coastline. Joining a beach clean is a simple way to help, and is a great way to get children involved in marine conservation.

The Great British Beach Clean is a week-long nationwide citizen science project that encourages people to visit their local beach to do a litter pick, recording what they find. In 2024, volunteers collected 249,823 litter items, filling 1,675 bags!

The Marine Conservation Society organises hundreds of beach cleans across the UK,  making it easy to join an existing clean-up or organise your own beach clean.

Rock out at Balstock 2025

Hertfordshire, 12-14 September

From 12-14 September, the historic market town of Baldock in Hertfordshire transforms into a lively venue as it hosts Balstock, one of the UK’s biggest free music festivals.

For three days, pubs, bars, and pop-up stages across town showcase an eclectic mix of local talent and rising stars from across the country. Listen to indie, rock, folk, or something a little more experimental, browse the stalls and enjoy delicious local food and drink.

Browse classics at the Isle of Wight Classic Motor Show

Isle of Wight, 6 & 7 September

Whether you're a devoted classic car enthusiast or simply enjoy a touch of nostalgia, don’t miss the Isle of Wight two-day Classic Motor show.

Expect to see hundreds of classic vehicles, including rare vintage vehicles from various eras, gathering from across the UK. You might even leave inspired to start your own collection.

Taking place at Newport Quay on 6th September and Ryde Esplanade on 7th September, this long-running charity event has been a highlight of the Isle of Wight calendar for over 20 years.

Join the Boundless Classic Vehicle Group

If you have a passion for classic vehicles, the Boundless Classic Vehicle Group  (CVG) is the perfect place to connect with like-minded enthusiasts. Whether you own a vintage car or simply admire them, you’re welcome to join in our tours, displays and events – ownership not required, just enthusiasm!

The Power of Trees exhibition at Kew Gardens

London, daily until 14 September

Discover The Power of Trees, an exhibition celebrating the timeless influence of trees in art and culture through everything from detailed botanical illustrations to immersive video installations at Kew Gardens.

A standout piece is Finnish artist Eija-Liisa Ahtila’s Horizontal–Vaakasuora, a striking portrayal of a towering spruce in Finland’s boreal forest, complete with natural soundscape. Entry to the exhibition is included with entry to the gardens.

Boundless members get unlimited annual access to Kew and Wakehurst. Members also get 50% off entry for an additional adult, free entry for up to five children and a 10% discount in the Kew shop, both online and in store.

Celebrate London's famous river at Totally Thames festival

London, 1-30 September

The River Thames has been at the heart of London for centuries, so what better way to honour it than with a month-long celebration? Totally Thames returns this September, bringing a packed programme of arts, culture and community events along the iconic waterway.

Over the month, enjoy live music, art exhibitions, guided walks and a wide variety of workshops. While some events are ticketed, there’s plenty to enjoy for free.

Two highlights of the festival are the Classic Boat Festival at St Katharine Docks on 6 and 7 September and the Great River Race on 20 September, an epic 21-mile rowing challenge.

Discover secret London at the Opera House Festival 2025

London 13-21 September

From iconic landmarks to historic places, this free event invites Londoners and visitors alike to explore the city’s rich architectural heritage and hear the stories behind the buildings that shape it.

The Open House Festival is London’s largest annual celebration of architecture, neighbourhoods and the communities that bring them to life.

Taking place across all 33 boroughs, the festival offers a rare opportunity to step inside hundreds of buildings, many of which are usually closed to the public.

Experience Regency Bath at the Jane Austen Festival

Bath, 12-21September

Step back in time at Bath’s annual Jane Austen Festival, a charming celebration of Regency life and literature.

Watch (or join in!) with the Grand Regency Costumed Promenade, a highlight of the festival that sees hundreds of Austen fans dressed in full Regency attire parading through the city streets.

The 10-day programme also features guided walks, fascinating talks, classical concerts, workshops, and traditional dance classes, all set against the backdrop of Bath’s stunning Georgian architecture.

Tuck in at South Glos Food & Drink Festival

Bristol, 13 & 14 September

Held on the lawns of Bristol & Bath Science Park, this lively food festival serves up the region’s finest local produce alongside a fantastic lineup of live music and entertainment for all ages to enjoy.

Entry is free, but don’t forget to book your spot by registering for a time slot here.

Walk with a Warden

WWT Llanelli, 20 September

Celebrate the season of mists and mellow fruitfulness by joining September’s Walk with a Warden walk at WWT Llanelli. This monthly guided walk offers the chance to explore WWT wetlands with an expert and learn more about seasonal wildlife highlights.

In September, discover fascinating fungi and learn about the ripe berries and fruits that provide vital nourishment for wildlife as they prepare for the colder months ahead.

Entry is included with admission, and no advance booking is required. Visit WWT Llanelli website for the latest info and ticket prices.

As a Boundless member, you and up to five children can enjoy unlimited access to all nine WWT centres, plus 50% off for one additional adult guest. Find out more about Boundless membership and how to join.

St Fagans Food Festival

St Fagans National Museum of History, Cardiff, 13-14 September

If you’ve visited St Fagans National Museum of History near Cardiff, you’ll already know it’s one of Wales’ top free attractions for families of all ages. But it’s about to get even better.

The museum grounds will be filled with over 80 stalls showcasing the best of local Welsh produce as it hosts St Fagans Food Festival. Expect handmade crafts, family-friendly activities, and a packed schedule of live music.

Entry to the museum and festival is completely free, but you’ll need to pay for parking or use public transport.

Show off your classic car at Hinckley Classic Motor Show

Leicestershire, 21 September

Back for its 14th year, Hinkley Classic Motor Show is one of the largest in the UK, showcasing hundreds of vintage and heritage vehicles. There’s also live music, family-friendly entertainment, and a variety of food stalls, making it a fun day out for the whole family.

Last year, more than 800 proud owners took part, and visitor entry is free. If you’d like to show off your classic car, it’s also free for exhibitors.

Cheer on boats in Newcastle's Dragon Boat Race

Newcastle, 28 September

Each year, teams of paddlers take to the River Tyne in brightly decorated dragon boats to compete in a fast-paced, adrenaline-fuelled race that’s as fun to watch as it is to take part in.

The Newcastle Dragon Boat Race is a great riverside day out for all ages. After cheering on racers, there’s no shortage of entertainment off the water too. Find street food, live music, family activities and a festival atmosphere throughout the day.

Watch Kendal Torchlight Carnival

Kendal, 27 September

Kendal’s much-loved torchlight procession has been illuminating the town since 1970, but it’s not just about the evening spectacle. By day, the streets come alive with vibrant music, street performances and family-friendly entertainment, making it a fun event for all ages.

This year’s Kendal Torchlight Carnival theme is celebrating the seasons, and there’s still time to become a torch bearer if you’re quick.

York Food and Drink Festival

York, 19-28 September

Set in the heart of one of England’s most historic cities, the York Food and Drink Festival celebrates the best of Yorkshire with a delicious selection of local and regional food and drink.

The lively festival programme features day and evening wine and food tastings, cookery demos, workshops, and activities for children to enjoy.

Fire up your neurons at the British Science Festival

Liverpool, 10-14 September

Get your neurons firing at Europe’s longest-running science festival, which heads to Liverpool this September for five fascinating days of science.

Aimed at adults (aged 16+), and led by scientists, engineers and technologists, the British Science Festival features a diverse schedule of talks, hands-on experiences, and interactive sessions, all of which are guaranteed to amaze and free to attend.

Celebrate the sea, ships, and stories at Belfast Maritime Festival

Belfast, 6 & 7 September

Set against the backdrop of the vibrant Titanic Quarter, Belfast’s waterfront comes to life as the Belfast Maritime Festival transforms the Maritime Mile into a swashbuckling hub of activity.

The festival offers a weekend filled with maritime heritage, interactive experiences, and family-friendly fun with live music, rides, interactive science sessions and circus performances. With themed zones showcasing everything from seafaring traditions to innovative shipbuilding, it's a celebration of Belfast’s rich nautical past and present.

European Heritage Open Days

Sites across Northern Ireland, 13-14 September

Step into Northern Ireland’s rich past with European Heritage Open Days (EHOD) 2025. Over the weekend, more than 200 historic sites, cultural landmarks and hidden places will open their doors to the public, completely free of charge.

Enjoy guided tours, talks, living history re-enactments, family fun days and more, as communities across Northern Ireland celebrate their shared heritage.

Drink in the views at Loch Lomond Food & Drink Festival

Balloch 6 & 7 September

Loch Lomond’s breathtaking shores are stunning in all seasons, but foodies might want to time their visit to attend Loch Lomond Food and Drink festival.

This free two-day event hosts a fantastic selection of artisan market stalls, live cookery demonstrations from top chefs, and plenty of family-friendly entertainment to enjoy throughout the weekend. There’s also free cocktail and mocktail masterclasses on offer if you fancy honing your skills.

Discover secret places at Doors Open Days Festival

Sites across Scotland, 6-28 September

Scotland’s largest free heritage and community festival, Doors Open Days, returns from 6 September 2025, offering rare access to over 1,000 fascinating buildings, hidden spaces, and cultural landmarks across the country.

From behind-the-scenes tours and guided walks to performances, exhibitions, and hands-on workshops, each location offers a unique opportunity to explore Scotland’s rich architectural and cultural heritage.

Free family day at Lochaber Live

Fort William, 12-14 September

Lochaber Live is returning to Fort William this September, following the success of the 2024 festival after a 30-year hiatus.  
Enjoy a weekend of live music and local culture set against the stunning backdrop of Fort William. You’ll need to purchase day tickets for Friday and Saturday, but free family day tickets are available for Sunday.

This free family day will feature lively performances from two fantastic local acts – The Robert Robertson Dance Band and The Martainn Skene Dance Band, plus a live recording of BBC Radio Scotland’s iconic Take the Floor, hosted by Scottish musician and broadcaster Gary Innes.

Eclipses – A Mesmerising Cosmic Coincidence with astronomer Steve Warbis

Online, 2 September

Join astronomer Steve Warbis on 2 September for this fascinating online talk which delves into the four eclipses of 2025, including the total lunar eclipse happening just days later, on 7 September.

Steve will unpack the science behind these celestial events, reveal their influence on human history, and take viewers on a virtual journey to the Libyan Sahara Desert.

This free online talk is open to all Boundless members, simply register via email to book your place. Don’t forget to add your membership number for the chance to win prizes.

Behind the scenes at the British Motor Museum: The Off-Limits Collection

Online, 6 September

Enjoy exclusive, behind-the-scenes access to the British Motor Museum’s unseen treasures in its restoration area.

Tune in for a special evening tour exploring areas usually closed to the public. Discover the museum’s off-limits vehicle collection, delve into rare historical documents, photographs, and film reels, and get a closer look inside the artefact stores.

Guided by experts, you’ll be joined by costumed interpreters Jim and Claire to learn more about how the team preserves everything from vehicles and road signs to vintage toys.

This event is open to all Boundless members. Simply register via email to book your place. Don’t forget to add your membership number for the chance to win prizes.

Exploring the UK through its most symbolic foods with Luke Waterson

Online, 23 September

While the UK is home to many fine-dining spots, this exclusive online member event, hosted by travel writer Luke Waterson, takes you on a culinary journey. During the 60-minute event, Luke will showcase a selection of locations made famous for producing delicious food and drink.

This event is open to all Boundless members, register via email to book your place. Don’t forget to add your membership number for the chance to win prizes.