The Sirena 68 is a 22.45-metre current production yacht from Sirena Yachts. Official specifications give a 5.90-metre beam, 1.35-metre draft and 3 guest cabins.
Sirena lists Twin Volvo Penta D13 900 hp; optional twin Volvo Penta D13 1,000 hp. The highest published maximum speed is 27.7 knots. Published cruising speed is 16 knots. Published range is approximately 1,200 nautical miles at the stated economical speed. Fuel capacity is 5,250 litres and fresh-water capacity is 1,400 litres. Sirena publishes 21.40m excluding the anchor roller and 22.45m including it; Luxury Yacht Guide stores the builder-defined full LOA including swim platform and anchor roller.