Jet boats were once mostly hairpin-­happy thrill rides, with the reflexes of a slot-car. Today, they’ve matured into hot-selling family models, viable alternatives to craft propelled by propellers.

The 210 LX combines power and efficiency with sleek design. Courtesy Scarab Jet Boats Scarab's 210 LX shares the "second-generation" look and feel of the boatbuilder's retooled 285 and 235. It also ...