Feeling bogged down by meetings and out of her depth at work, travel writer Laura Hall quit her job and embarked on a fresh challenge to get her life back on track. Her new book, The Year I Lay My Head in Water: Swimming Scandinavia in Search of a Better Life, documents the year that followed, spent cold-water swimming around Scandinavia. Jen chats to Laura about the book, the appeal of the sea, the insanity of cold-water swimming, and the absolute joy of taking on a daft challenge.