Captain Derning started his career on the water in 1998 working in the San Francisco Bay on tugs. In 2001 he got his 100 ton masters license with a towing endorsement. With his extensive tug experience he was grandfathered in to a Master of towing in 2004.
Currently holds this license for all inspected vessels
Sean Derning is proficient in vessels with all types of propulsion. This includes Azimuth Stern Drive, Single Screw, Twin Screw, and Paddle Wheel.
Captain Derning owns full keeled racing sloop which he keeps on the lake year round drawing from his years sailing on the San Francisco Bay.
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