Here are a few photos of Marina di Ragusa in Ragusa province, Sicily, Italy.
There is a 2 km long lungomare, a long promenade at the seafront, that you can bike along. Or walk, scooter, jog, or move along in any way you find fit. Along a 9 km stretch of road from Marina di Ragusa to Punta Secca, you will find many small beaches where to swim.
Also, I have to remind you that if you have watched Commisario Montalbano, his TV series house is located in Punta Secca. It is a major tourist attraction in the area.