Take a boat taxi along the curve of the grand canal and be amazed and stunned with the view. Simply breathtaking. I think everyone would agree that this place is lovely. So it's a must to visit Venice.
Of course in summer it can be really hot and after exploring and wandering for a whole day my body became sticky from sweat.
I wonder though where's the party at at night? Well, Piazza San Marco seemed lively at night with restaurants and abundant of tourists still clicking away.
Me and Melia stayed for 2 nights at Corte Canal which Melia found through hostelbooker for Euro 35 a night. We can't complain as we had a room to ourselves. Simple breakfast was included. We remember the place because we still have the map the hostel distributed which was handy and informative.
If you have time you can venture to Burano, Murano and Torcello.