Most people, when they travel from London to Brighton, go by car, take the train or hop on a coach.
But there is another way. It'll take between 10 and 30 hours and leave a few blisters on your feet, but it'll be an adventure you'll never forget and potentially make a boatload of money for a charity of your choice.
We're talking about the London 2 Brighton Challenge, a 100-kilometre walk from leafy Richmond upon Thames on the outer edges of the capital all the way to one of the south coast's most famous cities.
The event, which this year takes place across the weekend of 25th and 26th May, is open to all – individuals, teams, novice strollers or experienced hikers. Walk it, or even run it – it's entirely up to you.
A third of the 62-mile route is on-road, while the rest takes you along some fine country trails, which include the beautiful South Downs.
The course is well signposted and has rest stops every 25km, with checkpoints every 12.5km.
Over three thousand took part in last year's event, with many hoping to join again this year.
To get involved, you need to sign up via the London 2 Brighton Challenge website and pay the £85 registration fee. A sponsorship target of £400 has been set for this year, so you'd better hurry if you want to take part.