Cumbria.
The home of much-loved author and illustrator, Beatrix Potter.
She wasn't just inspired by this sublime setting - as a farmer, she fought to conserve and care for it.
Which character do you think would have an absolute feast in here?
Peter Rabbit!
Peter Rabbit.
Nearly at the top now.
This makes it all worth it!
Helen's getting stuck in with the Lakeland games she loved watching as a child.
How do you stay on your feet?
Don't know!
Tom's investigating the world's most widely used herbicide.
It's used on our farmland, our parks, our gardens, and even our allotments.
So why are there calls from across Europe to ban the use of glyphosate?
And Adam's in Suffolk, where heavy horses are helping to recreate a Capability Brown landscape.
How do you think we would load this log on here without the aid of any mechanical means?
I don't know how you're going to lift it off the ground.
The lush Lakeland landscape is nature at her most creative.
It's captured the imagination of many great artists and writers, who created their own masterpieces here, inspired by these fells.
And one of the most famous of them all is Beatrix Potter.
Born in London, her love affair with the southern Lake District is well documented.
But what many people don't know is that it all began further north, at Lingholm, on the shores of Derwentwater.
It was in these tranquil surroundings as a young woman that she came up with the ideas for her most famous stories - Mrs Tiggy-Winkle, Squirrel Nutkin and Peter Rabbit.
To mark the 150th anniversary of the birth of Beatrix Potter, Jessie Binns, a ranger with the National Trust, has been looking more deeply into the relationship between Potter's works and the landscape.
Jessie, hello!
Hello!
Very nice to meet you.
Now, of all the beautiful places in the Lake District, why are we meeting at this particular spot?
Well, we're in the hamlet of Littletown right here, that she writes about.
And what we've been finding is that she drew the actual hills that are around here.
She wrote about real people and about real places.
Right.
And she's actually painting the real landscape that's around here, so I thought, well, I wonder if I can track down some of the places where she stood to make those paintings.
Luckily, the rangers who work with me, some of them have worked in these valleys all their lives, so they said, "OK, we'll start in this area, start in that area."
And then once you start looking, suddenly you kind of come round a corner and go, "That's it!
"That's it!"
So you've got all these big burly rangers reading Mrs Tiggy-Winkle!
Absolutely!
Yeah.
Trying to find the actual places.
Suddenly, we've stepped right into the painting of Lucy, from Mrs Tiggy-Winkle.
You can see, can't you, there, the top of the crag coming down and that beautiful rounded hilltop in the background?
She's captured it beautifully, hasn't she?
Yeah.
Have you said to the people in the farmhouse, "Do you realise that your house is in a Beatrix Potter book?"
No, I've been too scared!
Well, maybe they're watching Countryfile now.
If you are, congratulations!
"Lucy scrambled up the hill as fast "as her stout legs would carry her.
"She ran along a steep pathway, up and up, "until Littletown was right away down below."
Another famous tale that comes straight out of the landscape at Lingholm is Squirrel Nutkin.
So this is quite a famous tree, this one, Jessie.
Yeah, and when you look at this you can really see why.
I mean, that is absolutely...
Oh, my word!
Isn't it?
Yes, it is!
Isn't that great?
It's bang on!
This is from The Tale of Squirrel Nutkin, and it's the squirrels rafting to the island.
It's such a beautiful...
Great idea.
Isn't it great?
And I've been going round and round Derwentwater looking at this island from all angles, trying to make the hills in the background match up, and I think this is closest I've seen.
But also we've got this fantastic clue, because this is one of the very few photographs of Beatrix actually sketching in the landscape.
We're pretty sure that this photograph was taken on St Herbert's Island looking that way.
So we know that she visited the island.
We've got proof that she was there.
What you hope to do with all of this evidence that you've now accumulated?
Ah!
Well, my grand plan, if I can make it work, is I'd love to actually install replicas of her original watercolours in the landscape temporarily, so that people can physically stand at the spot where Beatrix stood and feel as inspired by it as she was.
And then see the artwork that she produced from that.
And I think if we can make that connection between her love of the lakes and the landscape around it, I think it would be an amazing thing to be able to share with people.
"They made little rafts out of twigs, "and they paddled away "over the water to Owl Island "to gather nuts."
It certainly feels magical to be standing on the spot where Beatrix Potter dreamt up some of her wonderful wild heroes.
Now, it's the world's most used herbicide, so why is it that across the UK and Europe there's an argument to ban glyphosate?
Here's Tom.
Today's farmers have many tools at their disposal, but when it comes to using the world's bestselling weedkiller, glyphosate, it isn't without controversy.
Around three-quarters of a million tonnes of this staff, glyphosate, are used on our farmland across the world every year.
But now some people say it's unsafe and could increase the risk of cancer.
And the European Union is considering a ban.
So when you're spraying this, are you driving yourself or you get a bit of satellite assistance?
Satellite assistance guiding the steering of it, the direction of it and also for switching the chemical on and off.
Andrew Ward farms 1,600 acres of arable land in Lincolnshire.
Today, he isn't spraying glyphosate, but when he does, he uses it to wage chemical warfare on one of the most prolific weeds that farmers face - blackgrass.
Give me a feeling of the timetable of how you'd use it in fields like this.
The field we're in at the minute is sugar beet.
It was sprayed on the bare soil, as the blackgrass is germinated in the autumn, and then it was sprayed again in the spring before we sow the crop.
So that would be two applications.
And in a wheat field, maybe, like...
In a wheat field like that, again it depends how soon the field is cultivated after harvest.
And so our aim is to get as many glyphosates on as we can.
So in most fields, they'd often be getting two or maybe three goes with glyphosate?
They would with us, yes, but a lot of farmers, probably only one.
Glyphosate is the only effective weedkiller on the market that can rid a field of blackgrass.
But that's not the only way it's being used on farms.
It can also be used to dry wheat before harvest.
In a wet year, like we're having at the moment, the wheat is slow to mature and it ripens very unevenly.
Farmers use it to ripen their crops so that the millers then have a better availability of premium red wheat so they can actually make better quality loaves of bread.
For farmers like Andrew, glyphosate is more than just a useful tool - it's an essential part of agriculture that he says he can't do without.
And it's not just farming that relies on this weedkiller.
The next time you sit on a park bench, lean on a lamppost or pass a roadside tree, there's a good chance that glyphosate will have been sprayed around them.
Introduced in the 1970s by the biotech giant Monsanto, today, glyphosate is widely used to keep railway lines free of weeds and by councils in public places.
And you might even find it in your garden shed or on the allotment, because glyphosate is the active ingredient in the world's bestselling weedkiller, Roundup.
But despite its wide-spread use, there are growing calls for it to be banned due to safety concerns.
We've got to get a little bit more relaxed about having a few more weeds, plants out of place in our farmed environment.
Helen Browning runs a 1,400-acre organic farm in Wiltshire, and is the chief executive of the Soil Association.
We've got a fairly typical picnic here in front of us - a loaf of bread, sandwiches and a pasty, but the news about glyphosate gives you some concerns about this.
Tell me.
Well, glyphosate has been cited as a probable carcinogen.
Surveys have shown that something like two-thirds of bread products have glyphosate residues in them, it's turning up in breast milk, in our urine, so this chemical is becoming ubiquitous.
It's getting into us on a regular basis.
Now that there is this concern over its carcinogenic properties, we've got to stop that.
Last year, the World Health Organisation listed glyphosate as a probable human carcinogen or, in other words, it probably increases the risk of cancer.
For such a widely used herbicide to be listed as probably carcinogenic sounds fairly scary, but it's worth remembering what's in the same category - being a hairdresser, for instance.
And of greater risk is sunlight - little of it today, granted - and also alcohol, listed as carcinogenic.
It's these safety concerns that led campaign groups like the Soil Association to call for a ban on the use of glyphosate on crops just before they're harvested and from being used in public spaces.
Their demands have been gathering momentum.
Recently, glyphosate came close to being banned across Europe, but was given an 18-month stay of execution by the European Commission while they consider a new report into its safety.
Even though our nation recently voted for Brexit, UK farmers could still be affected by a European ban.
That's because even when we officially leave the EU, farmers could be stopped from exporting foods containing traces of glyphosate onto the continent.
If there had been a decision in Europe a few weeks ago to ban glyphosate, what would that have meant to your farm?
It would have really been catastrophic for the farm, because we'd have had to grass down big areas and then cease growing things on there.
It would then question whether it was actually worthwhile carrying on farming in the other part of the farm.
So it's not an exaggeration to say if you couldn't use glyphosate it might question your future in farming?
I don't think it is an exaggeration at all.
The National Farmers Union agree with Andrew that a complete ban would be very costly.
They estimate that more than £500 million-worth of production would be lost each year without the use of glyphosate.
But does it really pose as serious a risk to health as being claimed?
Many of those who are convinced glyphosate is safe say opposition to it is driven by a desire to cripple its leading manufacturer - a company seen by some as the bogeyman of modern farming, Monsanto.
So, is that true, and can we farm without it?
I'll be finding out later.
The beginning of the 20th century saw the arrival of tractors powered by petrol and diesel.
Before then, our farmland was shaped and cultivated by horse and steam power.
You may think that as soon as mechanisation came along, working horses became redundant, but actually there was a time at the turn of the century when old and new worked side by side.
Here at Old Hall Farm in Cumbria, they still do.
Husband and wife Alex and Charlotte Sharphouse are combining their two passions.
Charlotte loves working with heavy horses, whilst Alex prefers something a bit more up-to-date.
Charlotte!
Who is this fella?
This is Troy.
Now, talk me through to how you got to this point in your life.
Ten years ago, we bought this derelict farm, and we set about farming a traditional Lakeland farm.
It's all about the forgotten skills, the forgotten arts, the forgotten machinery.
So it's still a working farm?
It's still a working farm.
We farm it traditionally.
We've just got about 120 acres.
So a traditional farm would have done a bit of dairy, a bit of arable, a bit of beef.
So that kind of bucks the trend.
Most...
There are a lot of people leaving farming, yet you've spent a decade investing in it and trying to set up a farm.
Absolutely.
We certainly are bucking the trend.
When you work with the horses, you can think, "Yeah, that's why tractors came!"
Troy's raring to go and I'm also being put to work.
It's time to harvest some potatoes.
Come on, Troy.
Come on, lad.
Back up.
Reins next.
Just want to go up through the ring.
OK, Troy.
Walk on.
We've got this, Troy.
We're away.
Teamwork now.
Walk on.
So I just have to...?
Steer where the potatoes are.
Aim down the middle.
Ah!
I've plunged it off track, haven't I?
I'm really sorry, but I've missed the line, haven't I?
That's my profit gone.
Walk on, Troy.
Walk on.
Good boy.
Towards the end of the 19th century, horses were being replaced, and this was a more familiar scene on farms across the land.
This is where Alex comes into his own.
These are unbelievable!
So what do you do with these?
These are a pair of ploughing engines.
You can see the two massive winch drums underneath the engines.
You park the engine each side of the field and pull the implement between them.
It was the very first form of mechanisation, after the horse, with steam.
It revolutionised, really, land cultivation on a decent scale.
Yet these didn't replace horses overnight, did they?
No, certainly not.
These particular engines are 1920, but you still needed a horse to be able to fetch water to them.
They'd use 1,000 gallons of water between them in a working day, a tonne of coal each.
Then, because of the size of them, they could obviously only do the big lumps of land, so you'd still need the horse to finish off and then tidy up afterwards.
I know you're a pretty resourceful man, but there's resourceful and then there's off-the-scale resourceful.
I'm looking around here...
How many bits and bobs have you built and created and fixed up?
Everything we have, really.
I don't buy anything that's done, really.
A year ago, Alex and his team took on their most ambitious project yet.
Talisman.
It's considered to be the king of the steam world.