Return coach tickets for the Dunwich Dynamo, the annual overnight bike ride from London to a sunken medieval city on the Suffolk coast, are now on sale from organisers Southwark Cyclists.

This year sees the 25th edition of the Dunwich Dynamo take place under a full moon on the night of Saturday 8th July. The "Dun Run" has attracted a cult following over the years. In 2016 around 2,000 cyclists made the 200km trek from a Hackney pub to the shingle beach in Dunwich, and the ride continues to grow in popularity.

Coach tickets home from the 2017 Dunwich Dynamo are now on sale.
Coach tickets home from the 2017 Dunwich Dynamo are now on sale.

The Dunwich Dynamo is not so much a sportive as a rolling social event: maps are available at the start, but don't expect timing chips or energy gels. Some residents along the route provide pop-up catering, and plenty of riders make use of late-opening pubs, but for 2017 there won't be an official catering stop as in previous years.

The route is fairly flat and many turns are signposted, although if you leave with the main bunch you'll be able to follow red lights all the way to the sea.

When you finally reach the beach, many cyclists take the chance for a dip or at least a nap on the shingle. It's probably the biggest day of the year for the Flora Tearooms cafe on the beach; if you haven't eaten chips out of a salty helmet you haven't lived!

What about getting home again? Local train services aren't very bike-friendly, but each year since 1999 Southwark Cyclists have organised coaches back to London from the beach. Tickets for the 2017 coaches are now on sale, with an early-bird price of £25.99. That includes a seat on the coach for you, and a place on the back of a removals van for your bike.

Coaches leave throughout the morning but there are a limited number of places available. When the early-bird tickets sell out, 250 places will be released at £45.99. It's definitely worth booking early as tickets always sell out (and if you later change your mind, you can get a refund less 5%).

Alternatively, you could always join the handful of hardcore cyclists who simply turn around on the beach and cycle back to London...

For more info on the Dunwich Dynamo and to book your coach ticket, visit

And for an idea of what to expect on the ride if you set off far too late, check out our report from the 2014 Dynamo:

Lanterne Rouge on the Dun Run: Dunwich Dynamo XXII report

Recovery food Dunwich style.
Recovery food Dunwich style.