The naturalist wanders along the shorelines of Britain. On Holyhead Island in north-west Wales, Kate discovers one of her favourite rare birds and Britain's longest breakwater - a 1.7-mile-long feat of Victorian engineering.

Kate's starting point is the picturesque village of Alnmouth, which was once a leading grain port in the 18th century and has become known for its scenery.

Kate walks a scenic route along Ayrshire's coast, the birthplace of poet Robert Burns.

Kate walks the hilly coastline that is home to two of north Wales's most popular tourist destinations - the walled town of Conwy, and the Victorian resort of Llandudno, once dubbed the Queen of Welsh resorts.