A narrow arm of land surrounded by the sea, Cape Cod is dotted with ponds and lakes and cross-hatched by inlets, marshes, and bays. This abundance of salt and fresh water offers paddlers nearly unlimited opportunities to experience the rich aquatic life and beauty of the Cape. Paddling the Cape's waterways is the best way to see its wildlife and to understand the ever-changing forces of sand, tide, and wind that define this land-and it's the perfect way to escape the crowds. Natural history tour leaders Shirley and Fred Bull outline 35 trips for paddlers of all levels of experience that...