Hills Fleurieu Police are investigating a break-in and theft on Hindmarsh Island.

Sometime between 7 November and 11 November, thieves broke into a house on Baston Parade and stole a black 'Specialized' bicycle and a grey/white RIP Boat, registration JT266S. The boat was on a 2013 Dunbier silver boat trailer, registration S807TFR.

Anyone with information is asked to contact Crime Stoppers on 1800 333 000 or online at www.crimestopperssa.com.au