Kayaking on Loch Hourn off Knoydart in the Scottish Highlands.Photograph: Larum Stock/Alamy Make this the summer you get back out on the water, with fish plopping beneath you, bulrushes shimmying and kingfishers darting by. Even if you don’t have your own kayak or paddleboard festering in the garage, there are dozens of excellent hire places and guided tours up and down the country, on beautiful rivers, lakes, canals and coastlines.