I highly reccomend Casa Sterlizie for one week vacation in Sicily. My friend with little baby, my boyfriend and I sepnt htere 5 days in may, but you can fit even more people there. The house has a wonderfull view over the bay and the great rock at the back. You can grill fesh fish which can be bought in the nearby city Terrassini. The leomn garden tha so rounds the houses allows to prepare great lemonade, which you can sip next to the pool. There's wi-fi on the roof of one of the houses, so you can relax from you facebook. There's pingpong table next ti the pool, but a bit windy. The only mins is that theres a highway 500 m above , but you cant see it and cant really hear it. Great choice!