On the last leg of the journey, a seaweed bath is followed by a steamy scene in Ballina.
Piers Taylor and Caroline Quentin explore extraordinary homes built in coastal locations.
With nearly all their beds occupied, the pressure is on St Mary's to discharge patients.
Paul Rose explores the Yorkshire Wolds Way, with a unique view of the chalk downland.
How a new generation of composers embraced more gritty, challenging subjects.
A journey around the great estuaries of Britain - the Firth of Forth, Thames and Severn.
The construction of a structure to entomb the ruins of the Chernobyl nuclear power plant.
In Borneo, a spy creature meets real orangutans and discovers how they use human tools.
Michael Portillo learns how the Emerald Isle inspired the poet WB Yeats.
Dr Giles Yeo investigates the latest diet craze and social media sensation - clean eating.
Dr Sam Willis looks at the drive to develop ever more precise weapons on the battlefield.
Dr Xand van Tulleken takes a satirical look back on 2016 in health news.
The serial swipers and the success and horror stories of their search for love online.
The hidden world of algorithms, which run everything from search engines to satnavs.
Michael Portillo gets up to speed with modern archaeology in County Meath.
James May pieces together the 195 parts of the Dansette Bermuda portable record player.
A look at how ABA (applied behaviour analysis) is used to treat autism.
Rachel and Becky Unthank explore England's hidden winter customs and dance traditions.
Paul Murton learns how Scotland was first promoted as a winter holiday destination.
Stacey embeds herself with the all-female Yazidi battalion fighting Isis in Iraq.
At Trinity College, Dublin, Michael Portillo discovers one of Ireland's greatest treasures
Steve Elias heads to Skipton, to find out what makes this picturesque market town tick.
The story of The Scotsman, one of Britain's most famous newspapers.
Series taking a look at the health service in Northern Ireland.
Dallas Campbell reveals the hidden wonders beneath our feet.
How later plays saw Shakespeare still alert to the troubled Jacobean world around him.
Armed with his Bradshaw's Handbook, Michael Portillo begins a journey across Ireland.
A look at the lives and careers of Alex Higgins, Jimmy White and Ronnie O'Sullivan.
Andy Torbet dives below the waves in search of the inspiration for the first stone circle.
Celebrations are taking place as the Queen turns 90 and ex-pat Margaret Jones turns 100.
Northern Thailand hides ancient creatures and surprising partnerships.
The computer malware allegedly unleashed to destroy part of an Iranian nuclear facility.
The history of childbirth in the 1950s and 60s and its portrayal in the drama series.
As the tourist season starts, the tour operators fight for every last customer.
Auctioneer Scott faces his biggest challenge yet - selling eggs that are hatching.
Iolo Williams visits Padarn Country Park near Llanberis in Snowdonia.