10 epic adventure challenges around the world

Everyone says they want to do something unforgettable one day. Whether that’s a bucket list plan or the epic trip that keeps getting pushed back another year.

Here are ten of the toughest, most rewarding adventure challenges around the world for anyone done waiting for the right time.

1. The Clipper Round the World Yacht Race, Global Circumnavigation

If you’re after the ultimate test of endurance, the Clipper Race offers the opportunity to complete a 40,000-nautical-mile circumnavigation aboard a 70-foot racing yacht with no previous sailing experience required.

You'll work through a structured training programme covering everything from sail handling to storm tactics before you leave the dock.

The race is broken into eight legs, so you can take on a single ocean crossing, combine a few, or go all in on the full circumnavigation. 

You'll face tough conditions such as the Roaring Forties, the North Pacific and the relentless Atlantic Trade Winds.

Ready to find out more? Request your free information pack.

2. The Marathon des Sables, Sahara Desert, Morocco

The Marathon des Sables is one of the toughest footraces on Earth, covering roughly 250 km across the Sahara, carrying your own food and kit, in temperatures that regularly hit 50°C.

It's been running since 1986, and it's earned its reputation as one of the ultimate tests in endurance sport.

3. The Mongol 100, Lake Khövsgöl, Mongolia

The Mongol 100 is an ultramarathon race on foot, bike, or skate across the frozen surface of  Lake Khövsgöl, one of the most remote lakes on the planet.

It's less about speed and more about sheer resilience, enduring extreme cold, vast empty landscapes and total isolation from the modern world, days from the nearest town.

4. Kilimanjaro, Tanzania

Most routes to the top of Kilimanjaro take five to nine days, with summit night typically starting around midnight to catch sunrise from 5,895m.

Altitude sickness is the real opponent here, which is why pacing and acclimatisation matter more than raw fitness.

5. The Welsh 3000s Challenge, Snowdonia, Wales

Fifteen peaks within Snowdonia National Park, The Welsh 3000s Challenge covers over 3,000 feet with around 50 km and 4,000 metres of ascent, including the notoriously exposed Crib Goch ridgeline, all within 24 hours.

One of the UK’s best adventure challenges, if overseas logistics, time off, or budget make a long-haul challenge harder to justify this year.

6. The Inca Trail to Machu Picchu, Peru

The Inca Trail takes around four days and is one of the most spectacular sustained climbs in hiking, covering 43 km at above 3,000m, with the infamous Dead Woman's Pass cresting at over 4,200m.

It’s complete with a payoff that very few hikes can match: arriving at the Sun Gate as Machu Picchu comes into view below.

7. The Polar Plunge and Ice Marathon, Antarctica

The Antarctic Ice Marathon is run on the world's coldest, driest, windiest continent, in temperatures that can drop below -20°C.

You're not just racing other competitors here; you're racing the conditions of ice and snow.

8. The Amazon Challenge, Colombia to Brazil

Starting in Colombia and finishing deep in Brazil, the Amazon Challenge is a multi-day route through some of the least-visited parts of the rainforest with navigational challenges built in along the way.

This is one of the most immersive adventure challenges on this list, and a reminder of how much of this kind of travel depends on protecting the wildlife and landscapes it's built around.

9. The Karakoram Highway, Pakistan to China

The Karakoram Highway is the world's highest paved international road, connecting Pakistan to China through the Himalayas, Karakoram and Pamir mountain ranges. 

Tackled by bike, motorbike, or 4x4, it's a multi-day expedition through some of the most dramatic mountain scenery on the planet, and one that runs through small communities along the route that depend heavily on the income overseas travel brings.

10. Hadrian's Wall Ultra, England

A 70-mile ultramarathon along the historic route of Hadrian's Wall from Carlisle to Newcastle, mixing remote countryside with urban stretches and history.

Runners climb and descend through Northumberland's exposed, weather-beaten terrain. This adventure challenge feels like a test of endurance mixed with a journey through time.

The Benefits of an Adventure Challenge

Ask anyone who's completed one of these challenges, and they’ll tell you about the clarity that comes from being pushed past where you thought your limit was.

Most people come back changed less by the miles covered and more by what they learned about themselves while covering them.

Then there's the community side, you make new friends under conditions that force real connection, and those friendships tend to outlast the challenge itself by years. 

On board an ocean racing yacht in the Clipper Race, that looks like the 2am sail changes, team meals, determination, downtime and crossing that finish line.

Well-being is another factor that appears in nearly every crew story. There’s a mental reset that comes from disconnecting fully, and the confidence that comes from having done something that felt almost unimaginable.

Add in the chance to see parts of the planet most people only see in photos, often alongside first-class support from experienced organisers and instructors, and it's easy to see why so many people who do one adventure challenge end up looking for the next.

Charity and Fundraising Challenges

Many of the events on this list and plenty more like them double as fundraising challenges, giving people a way to combine a tough physical test with a cause that matters to them.

Many of the world's biggest mass participation events, from the Ultra Challenge series to bespoke overseas expeditions, provide fundraising resources, sponsorship sheets and dedicated support teams to participants from day one.

The Clipper Race has long-standing ties to charity, with crew racing on board boats backed by partners including UNICEF UK and Great Ormond Street Hospital. 

If a cause matters to you, it's worth asking event organisers directly what fundraising support they offer before you commit.

Ready for the Biggest Challenge on This List?

If you're looking for your next adventure challenge, there's a chance you already know which one you're drawn to.

Unlike most of the events on this list, the Clipper Race offers the chance to race across the world's oceans, and you don’t need to have any experience at all before you start training.

Find out if you have what it takes. Request your free information pack.