A great little town, and Ragusa itself is worth seeing (UNESCO world heritage site). If you are coming into the marina though, then check this video first, and watch the weather. Read the notes below the video too.
Marina de Ragusa - enter with caution in strong winds. This video was taken after a couple of days of 20-25kts from the east, with stronger winds out in the Ionian. You could time it well and be lucky, but there's only 5.5 metres or so depth in the entrance and some rollers were big. Earlier in the year we passed by in an easterly F8 and anchored round Punta Scalambri off a good sandy beach in 5 m, out of wind and swell.