Insure your 2001 Cape Horn Boat 17/CC for just $100/year*. More freedom: You’re covered on all lakes, rivers and oceans within 75 miles of the coast. Savings: We offer low rates and plenty of ...

Seismic testing involves blasting the seafloor with high-powered airguns (a kind of powerful horn) every 10 seconds and measuring the echoes with long tubes to map offshore oil and gas reserves. These ...