On Coast & Country this week:
Andrew Price joins South Wales Caving Club to venture into the deepest cave in the UK. He squeezes through some gaps in the rock and crawls through tunnels on his journey through Ogof Ffynnon Ddu in the Swansea Valley.
For many farmers, working the land is in their blood, its traditionally been a job passed down from generation to generation. But what happens when family members no longer want to run the family farm? Hannah Thomas visits a 150-year-old family farm near Oswestry to explore an innovative way of attracting a new generation of farmers into the industry.
Also on the programme Nicola Hendy investigates the effects of a killer disease that has wiped out many of Wales' Larch trees. Phytophthora ramorum has led to the felling of nearly 2 million trees since it was first spotted in Wales in 2010. Nicky finds out exactly what the disease is and what makes it so deadly.
She visits Cwmcarn Forest, who will be felling around 150,000 diseased trees over the next few years. She also visits nearby Wentwood Forest, Wales' largest remaining ancient woodland, which suffered greatly from the disease in 2013 but is now on the road to recovery