Far more boating takes place on inland waterways than offshore waters. Some of the best cruising is found on networks of inland lakes and rivers and interconnecting waterways. In the United States, there are more than 30,000 miles of inland navigable waterways. In addition, there are numerous isolated rivers and thousands of lakes suitable for small boat recreation. Covers: Pilot Rules for Inland Waters, river boating, state boating laws, planning the cruise, aids to navigation, river piloting, lake boating, avoiding fog, lake piloting, river seamanship, canal boating, avoiding shoals & rocks.