After decades of decline, sea pools are surging back. This book presents 70 of the most beautiful saltwater swimming sites in the world, such as the cliffside Avalon Rock Pool in Australia; the sublime Pozo de las Calcosas, shrouded in volcanic rock; and Ireland's historic Vico Baths. Four essays explore the future of sea pools, the benefits of ocean swimming, an odyssey to swim in every sea pool in Britain, and the importance of sea pools in South Africa. Illustrated throughout with beautiful colour photography and fascinating archive material.