Stefanie Millinger showing off her incredible skills, demonstrating nerves of steel.

The Austrian athlete simply can't get enough of high altitude acrobatics.

Only a few people in the world can understand the feeling this gives me.

I'm a Free-Solo Artist for life.

That's what I call myself.

And I love being at high altitudes.

Today, Stefanie is heading up Dragon Wall, in Austrias Kalkalpen National Park or Limestone Alps for a photo shoot It's a challenging 1060 meter climb, but a rewarding one, affording a breathtaking view of Moon Lake below.

Stefanie's a bona fide adrenaline junkie.

I don't choose these spots - they choose me, I'd say.

I pick spots spontaneously when I pass them.

And I can't even stroll through a city without glancing up, thinking about what acrobatics I could perform here, or there.

Today, she'll be performing a number of vertigo-defying acrobatics on this bridge.

But first, she's got to get acclimated, quite literally.

It's cold and windy up here.

So she needs to warm up first.

Cold is the biggest challenge.

When I'm cold, everything gets so much harder.

But we'll see.

I'll check out the situation.

I could hang from underneath the bridge.

It's a 200 meter drop.

Be careful, please!

Stefanie's boyfriend, who documents her daring stunts, finds it hard to watch.

Shes got the skill.

But when you see everything sway, it does make you feel uneasy.

It's a bit easier for me to watch her on my camera screen.

That makes it seem less real.

But I'm happier when it's over.

Stefanie completes the shoot with a high altitude handstand and no safety ropes.

For years, she's been training many hours per day to pull off daring stunts like these.

The 28 year old shares videos of her acrobatic skills on Instagram.

She's done stunts all over the world, including on the Spanish island of Lanzarote.

Sometimes, she also makes funny videos showing off her amazing flexibility.

But not everyone approves of her extreme risk taking.

Some people comment on my content, calling it dumb.

They say, “You're risking your life for clicks and likes.” But they don't understand that I'm doing this because I love it so much.

It's my main passion in life.

On their descent, the couple stop by the stunning Dragon's Hole, a major tourist attraction in these parts.

Time for another quick stunt.

Without a care in the world.

Soaring high above the earth like a bird of prey.

Then landing smoothly on the ground: for Cengiz Koçak from Turkey, it's the perfect end to his working day.

His day begins like many other peoples.

A last sip of coffee, then he's out the door.

The rest of Cengiz Koçaks routine is less typical.

For one thing, his workplace is perched at 1200 meters altitude on Mount Babada on Turkeys southern coast.

His commute involves a cable car.

Then he's in his element at dizzying heights like these.

Fear awakens my curiosity when I'm afraid I can sense myself.

Cengiz Koçak needs the challenge.

During his time as a paratrooper with the Turkish Armed Forces, he discovered base jumping with and without a wingsuit.

He's one of the few people in Turkey who've mastered this extreme sport.

Cengiz Koçak arrives at work.

He's the manager of the Babada cable car.

He hangs his wingsuit up by his desk.

But apart from that, his workday has very little to do with extreme sports.

His job involves monitoring the cable cars technical systems and keeping an eye on the Panorama Restaurant and the viewing platform.

After he puts in his eight hours, it's quitting time - a moment he looks forward to each day.

I rarely take the cable car home because I can fly!

He puts on his wingsuit.

As this is one of Turkey's hubs for paragliders, Cengiz Koçak can get a piggyback ride up to just the right cruising altitude.

Then, he just spreads his arms and heads for home at speeds of up to 180km an hour.

“Home” is by one of Turkey's most beautiful beaches Ölüdeniz.

To land safely, all Cengiz Koçak has to do is open his chute and he's almost home.

Four minutes of flying instead of 40 minutes by cable car.

Now I'll unwind and watch Netflix.

The last job is to stow the equipment in his backpack.

For most wingsuit fliers, the extreme sport is a rare experience.

For Cengiz Koçak, it's the quickest way home.

No matter how hard the storm blows... how remote the places are... how hot the sun beats down... Berlin artist Christopher Lehmpfuhl always paints in the open air The times when I can work on site are the happiest ones for me.

To experience this panorama in reality, to feel the temperature and the light on my skin, to hear the sounds of the city and the surroundings are a vital importance to my work.

Currently, he's been commissioned to do a five part panorama of Germany's capital.

He paints at dizzying heights on the roof of Berlin's Charité Clinics main building.

He's fascinated by the light and the moods it creates.

It's constantly changing.

The play of light and shade create these extreme spatial depths.

The mid ground might be in shadow, but then it opens up again.

You're in a kind of continuous dialog, and so you always have to consider the changes occurring because of the light, and are they good and important for the work?

Should I include it or leave it out?

All these questions come up.

The artist has been working in natural settings for over 25 years.

Now, he can't imagine painting indoors.

Lehmpfuhl is an extreme painter, often working in defiance of the forces of nature, as in 2014 on Germany's North Sea island, Heligoland.

When I feel the tempest, that's an incredible resistance that I have to work against.

And I can use unbelievable quantities of paint to create something to stand up to it.

The more extreme the conditions, the more expressive and abstract the work turns out to be In 2017, Iceland's volcanic wilderness pushed Lehmpfuhl to his limits.

He painted 12 pictures within two weeks under the most adverse conditions.

There is a volcanic crater where I hauled paint and canvases 200m up, and then did my painting and dragged everything back down again.

After that, you're totally exhausted.

Back in Berlin - here he works 85m above the city's rooftops.

For this project, Lehmpful allocated some 80kg of oil paints... ...a feat of logistics in itself.

The thick strokes of paint make his work seem almost three dimensional.

He applies the paint directly to the canvas with his hands.

He says brushes create an unnecessary distance.

It's just fabulous.

The paint is so warm, but not hot.

Sometimes in summer I have the problem that the pain is so hot that it burns my hands.

His large format works are products of the moment.

It only takes him about four hours to finish the first three parts of his Berlin panorama.

I'd say we live in extreme times and you have to find a way to express that.

I think every age has its forms, its coloration, its emotion.

And to me, this art, these extremes are all about these emotions.

They're the works of an artist who prefers to apply his vibrant colors in thick swathes - so thick it can take months for them to dry.

Seatrekkers get to enjoy deserted beaches, breathtaking bays and stunning underwater landscapes.

They explore gorgeous coastlines by diving, hiking and swimming.

To me personally, the ocean is a sheer, boundless expanse.

It's a space you can never conquer, and it's this intangibility that draws me out there again and again.

That's absolute freedom.

Bernhard is a Seatrekking pioneer: 20 years ago, he was the first to swim from one Thai island to the next.

These days he offers workshops where he teaches others about the sport.

Today he's on the Croatian island of Cres, giving a seatrekking course with freediver Nikolay Linder.

Most participants are familiar with watersports, which helps.

Workshops like these highlight different aspects of seatrekking.

Such as planning your routes, the equipments needed and of course the way you move underwater.

It's not at all like swimming in open waters or free diving.

With seatrekking, your movements are a result of the expanse of the sea.

One of the most important pieces of kit is a kind of waterproof backpack.

It was developed by Bernhard himself.

Seatrekkers use it to transport everything they need: drinking water, clothing, food, a sleeping mat and sleeping bag.

We're talking about ten liters of drinking water.

Though I'll have to rearrange it in my pack so it won't get in my way when I'm swimming later on.

Once everything is packed, the backpack is inflated.

Now it has a streamlined shape and can be pulled behind the sea trekkers without much effort.

This three day workshop only features a short trip to a nearby bay further down the coast.

All participants sleep out in the open.

We're not really all that nervous.

I just hope I won't be cold.

Because we'll probably be going for 2 to 3 hours.

I don't mind the weather because we'll be in the water or diving most of the time, I hope the weather and underwater currents are important factors to consider.

Seatrekkers sometimes swim several kilometers per day and occasionally put in freediving stops.

You can go seatrekking pretty much anywhere.

Of course, we head to wild coastal regions because there's such an incredible gift and experience of nature: lonely islands were no one else ever goes.

You spent the night in the jungle.

And the next day you dive right back in to the coral reefs The workshop participants swim about two kilometers to a bay that can only be reached by water.

During a sudden rain shower, they set up their camp and make a fire.

Seatrekking is all about being in nature.

And about giving something back.

It's such a gift to be able to carry it through.

Unfortunately, the next day the weather has worsened and swimming back through the choppy waves is hard work.

But once they've made it, everyone's really happy.

This was a great tour.

Even though the sea was a bit rough, I have to say this was a great trip.

We learned a lot.

They showed us a lot of things.

Seatrekking is an exceptional way of getting around.

Id definitely do it again.

And after this nature trip, most participants are also happy to return to civilization.

Erik Fedko Is an expert at flying through the air on his cycle.

For the last six years, he specialized in the mountain biking art of slope styling, a discipline born in North America.

It's a freestyle sport, so you can do any trick you want.

You can make up your own jumps, and they can be up to ten meters through the air.

It's a lot of fun, and part of it is this adrenaline kick that gives you an amazing feeling.

The goal is to cycle through an obstacle course, mastering it in creative and challenging ways.

Of course its really important to hit every jump well because the next one is straight ahead.

So if you clear a jump to short or too long, then you've got practically no chance of hitting the next one.

And that's what's tough about this sport... hitting every jump cleanly and showing your tricks at the same time.

The 21-year-old has been a slopestyle professional for a year now.

He rides what's called a ‘dirt jump bike but with extra suspension.

It's very different from a conventional mountain bike.

The dirt jump bike isn't suitable for the road or for long distance rides.

The saddle is set down nice and deep so it doesn't get in the way when you're doing tricks.

And it doesn't have gears.

Also, with this rotor, I can spin the handlebars as much as I want without hanging up on a brake cable.

For practice sessions, you need the right bike and above all, a suitable training ground.

Together with his father, Fedko built a ramp close to his home near Dortmund so he could work on his jumps every day.

It's 7.5m tall - the ascent is still a little improvised.

It's almost as imposing as a ski jump.

Injuries are part of it, of course.

I've gotten hurt a lot.

I broke my collarbone on both sides.

Last winter, I broke my wrist, and it took five months until I was back on my bike again.

You learn from the falls and grow more careful, but that's just part of it.

At the moment, Fedko is working on the 360 Superman seat grab a jump where he grabs the saddle and stretches his feet into the air like a superhero while spinning in a complete circle.

I see more and more young riders who are enthusiastic about it, and also posting stuff on social media.

Some of the kids doing tricks are just 13 or 14 years old.

I'd love to see it take off in the future.

After all, Erik Fedco enjoys his sport the most when he's out riding with others, working on jumps together and encouraging each other to try new tricks.

Because that's another thing about free riding.

Even if you're a top contender, you're always your own coach.

When trees are flung through the air... boulders carried around... weights fly through the sky... And rain falls in buckets, it's summertime in Scotland.

Well, it's the perfect weather for a Scottish tradition.

I'm in Airth at the Highland Games, and I'll be facing off against some of the toughest men in the country.

And of course, that requires a certain dress code.

A traditional Scottish kilt is worn by all performers and competitors.

Every summer, around 80 communities across Scotland host Highland Games.

The village of Airth, west of Edinburgh, has been holding games since 1871.

There's running, cycling and plenty of heavy lifting.

It's a tradition deeply entrenched in Scottish culture.

Charlie Murray is the President of the Scottish Highland Games Association.

bag pipes Hi Charlie, Im Max.

Nice to meet you.

I'd like to know a little bit more about the history of the Highland Games.

Where did it all begin?

The history would be more than a thousand years old, and I believe it would be from the clans.

The clan chief would try and pick out his best and strongest men, fastest runners strongest, obviously, in the throwing events.

Aside from selecting warriors, clan chiefs also sought out dancers and musicians.

Nowadays, it's all about the honor.

The strongest compete in six so-called heavy events, for instance, weight for height, where the aim is to throw a 25 kilo weight over a bar.

The Scottish hammer throw using a cannonball attached to a wooden shaft, and in the caber toss, a trimmed tree is flipped over on its axis, ideally landing in a straight line.

Not an easy task.

I'm keen to have a go, but first one of the judges, Walter Weir, will give me a crash course in the hammer throw.

So what is the technique, then?

So first of all, pull it across and swing it around your head like that?

Yes.

And then over.

Okay.

I don't want to injure anyone.

Just take it nice and easy.

Swing it.

That's good.

There you go.

So how was that for a first go?

It was very good.

You didn't fall and lose your balance.

The caber toss is quite a bit trickier.

This one is the lightest, weighing 25 kilos, and is used only for practice.

Getting up into position and keeping balance is hard enough.

Then it's time to run and flip.

My first attempt leaves quite a lot to be desired.

It's not a walk in the park.

My rivals are professional athletes and weightlifters.

So how do you train for the games like this?

A local sports field lets me go down and basically throw weights about as much as I like.

Have you got cabers?

I've got an old telegraph pole.

Such a shame I lost my telegraph pole With nothing but my crash course to prepare me, it's time to have a go.

Without proper boots, the wet grass doesn't give me much grip.

My throw fails to impress.

The day's best measured in at 129ft.

Good thing no one bet on me winning!

So, what was the measure?

Fifty feet.

My next challenge is to toss the caber.

It has to be flipped once over and land straight like a clock hand going from 6:00 to 12.

My rivals offer me a sticky tree sap concoction for extra grip.

So my fingers are all sticky now.

I am ready for the cable toss.

The injury risk is a little bit too high.

So I can only go on a practice caber because I am not world championship quality.

All eyes are on me now and it's my last chance to make a good impression.

A perfect toss!

I can't believe it.

Bang on 12:00, albeit with the smallest caber available.

Still, who can say they flipped a tree at the ensuing awards ceremony?

The judges grant me a mock prize for my efforts!

It wasn't enough for a proper prize.

And I've really learned that you need to be a real athlete to compete at the Highland Games.

But I had fun anyway, and I'll definitely have another go in the future.

And perhaps I'll make a habit of working out in a kilt.