Sądze, że dziwnie byłoby pisać coś takiego w czasie Present Continous, więc pewnie chodziło Ci o czas Present Simple:
This summer i want to go on holiday to the Italy. I think that this is really great place to visit because there is hot and the are many beautiful things to sightsee (zwiedzać). There is also a sea, so I want to go there. It was also really great place in the past.