Dan O’s Marine  Sales & Service is one of South Dakota’s premier boat dealers. 

Dan O’s Marine  Sales & Service is one of South Dakota’s premier boat dealers. We have an experienced sales and service staff that knows boats.  We take pride in our expertise and quality line of boats that we represent.  For several years now we have been serving clients in the central United States.

With over 40 years of combined service our technicians are factory trained or certified by Mercury, Yamaha, and Johnson/Evinrude.  We service all major brands of outboards & stern drives.  We professionally rig all accessories and electronics in all brands of boats.

Located on West Hwy. 212 in Watertown, SD across from the Watertown Event Center.

Customize your new boat your way.   Mercury, Yamaha, Evinrude.  The CHOICE is  yours!