On October 11, 2015, at 1537 eastern daylight time, a Cessna 172N, N733VB, was substantially damaged during a ditching in the Atlantic Ocean about 11 nautical miles east of Miami Beach, Florida. The private pilot was not injured. Visual meteorological conditions prevailed and no flight plan was filed for the personal flight that departed from the North Perry Airport (HWO), Hollywood, Florida, about 1513 and was destined for South Bimini Airport (MYBS), South Bimini, Bahamas. The airplane was owned by Echo 6 Incorporated and privately operated under the provisions of 14 Code of Federal Regulations Part 91.The pilot reported that while en route to MYBS, at an altitude of about 3,500 ft mean sea level (msl) about 20 miles east of North Miami, he "felt a partial loss of power followed by a complete engine failure". He was unable to restore power, and decided to glide as close to the coastline as possible. He ditched the airplane about 11 miles east of Miami Beach, Florida. The four-seat, high-wing, fixed tricycle-gear airplane, serial number 17268573, was manufactured in 1977. It was powered by a Lycoming, O-320, 150-horsepower engine. The airplane's most recent 100-hour inspection was completed on October 11, 2015. At that time, the airframe had accumulated 3,473 total hours of operation. The engine had also accumulated 3,473 total hours of operation; of which, 1,585 hours were since its last major overhaul. The airplane had flown about 1 hour since the annual inspection. The airplane's fuel system consisted of two 21.5- gallon fuel tanks, one in each wing, for a total capacity of 43 gallons; of which, 3 gallons were unusable. The pilot reported 30 gallons of fuel onboard at the time of takeoff. The recorded weather at an airport located about 21 miles east of the accident site at an elevation of 29 ft msl, at 1553, included wind variable at 5 knots, visibility 10 miles, few clouds at 3,500 ft, temperature 30° C, and dew point 19° C. Review of an FAA Carburetor Icing Chart for the given temperature and dew point revealed that the conditions were outside of the icing envelope.