In the company of Heather Fell, Dave and Tobias create a 'Micro Ten Tors' challenge of their own - despite the fog and wind doing it's best to thwart their plans.
On Day 3 of their National park Adventure, Dave and Tobias tackle the Paradise Trail at Sutton Bank in the North York Moors National park.
On Day 9 of their Great British MINI Adventure, Dave and Tobias explore the trail running utopia of Coed y Brenin forest in Snowdonia National Park. Despite the downpour, they had the time of their lives.
Tobias loses track of time whilst running around the Pembrokeshire Coast National Trail on Day 10 of their Great British MINI Adventure around all 15 National Parks.
Dave and Tobias tackle a unique bike and run challenge up Cairngorm Mountain on the fifth day of their National Parks MINI Adventure
A canoe adventure down the River Ant on Day 1 of our Great British MINI Adventure.
An idea born in the pub - a trail running sea to summit challenge from Hurlstone Point to Dunkery Beacon, the highest point in Exmoor.
It's all about trying something new out, so we hired a couple of fat bikes and had an awesome day out.
600m of ascent, the Gap, epic views and death defying descents all led themselves to an awesome day of mountain biking in the Brecon Beacons - Tobias and Dave's 11th National Park in as many days.
For their final National Park, the South Downs, Dave and Tobias had a go at geocaching - a cross between treasure hunting and orienteering. It turned out to be a lot of fun.
Tobias and Dave explore the West Highland Way, Scotland's premier National Trail and one that passes through much of Loch Lomond and the Trossachs National Park.
On the fourth day of their National Parks MINI Adventure, Dave and Tobias explore the Cheviot Hills in the Northumberland National Park. This extraordinary landscape is home to hundreds of Iron-Age hillforts - a few of which Tobias discovered on foot whilst running in-between them.
On our seventh national park in seven days, we visit the Lake District and do a spot of paddling on Windermere to prove that Cumbria is still open for business.