a hen party in Venice, goodness help us !!
Lido di Jesolo is a "stretchy" term, covering a long thin strip of land between the Adriatic Sea and the Venetian lagoon in all more than 16 kilometres in length from the town of Jesolo to Punta Sabbioni at the far end.
There are organised coach trips for a day out in Venice (taking you by road round the northern and western edge of the lagoon) and I am sure your hotel will have details of such trips. Alternatively you could take a local bus (or a taxi) down to either Treporti or Punta Sabbioni and take a water bus over to Venice. For details of the water buses and their timetables check on www.actv.it