Two people were injured, including the operator of one of the boats.
Suffolk County police says the injured boat operator hurt her jaw, ribs and clavicle. A passenger on her 17-foot Boston Whaler broke his ribs. Both were taken to a nearby hospital.
Police say the Boston Whaler collided with an 18-foot Larson Bow Rider about 12:15 a.m. Saturday. Five people aboard were thrown into the water.
Both boat captains were arrested on charges of boating while intoxicated.