Coming from the direction of: 

Villach - Tarvisio - Udine - Trieste
Exit Noventa di Piave, then follow sign posts to Jesolo - Cavallino (via F. Baracca)* 

Chiasso - Milan - Brenner - Verona 
Padua - Bologna 
Exit Mestre (VENEZIA), link road towards the airport and then follow sign posts to 
Jesolo - Cavallino (via F. Baracca) * 

* Immediately after the bridge turn left onto "via F. Baracca" and continue for about 600 meters until you come to an island. At the island take 1st exit then take 1st left turn into "via del Faro". 
Continue on this road, pass island car park, for about 150 meters. The Campsite San Marco is situated on the right. 

Tips for people travelling by train or plane
Both the airports of Venice (Marco Polo) and Treviso (Antonio Canova) aren’t far away, and can be easily reached. The nearest railway station is in Mestre. In front of the airports and the railway stations you will find the bus stop to Jesolo. The journey lasts about an hour from both airports and railway stations. 
The bus line no. 23/B, bus no. 5 will bring you a few steps from Camping San Marco (Bus stop “Condominio Il faro”).