威尼斯交通tourist travel card ACTV咨询

打算定下威尼斯的交通票，几个问题请教大侠
1、http://www.veniceconnected.com/zh-hans/node/7662 找到这个网站，订票靠谱不？
2、本人在威尼斯的情况 ：第一天晚上20：00左右到 VENEZIA S.LUCIA，第三天下午去马可波罗机场搭16：30的机去布拉格，这两天想在主岛、以及玻璃岛和彩色岛逛逛。 请问我买 48小时的tourist travel card ACTV+airprot transfer bus one way 票可以满足我在威尼斯的所有交通需求了吗？要去的地方只要搭乘ACTV公司的交通工具就可以了吗？去马可波罗机场的车次在哪里可以坐呢？ ACTV's ticket machines取票机器在VENEZIA S.LUCIA附近有吗？因为我在这里下火车. 非常 感谢了

This card allows unrestricted use of the ACTV public transport services in
Venice, the lagoon islands and mainland. The exceptions
can be seen here. Tickets must be picked up at any of the ACTV's
ticket machines or at any of
//venice>connected points from the date chosen as first use day
in the calendar and not later than 24 months from the date of purchase. The
card's validity starts from the exact moment of the first validation. This card
also incorporates a single ticket having Venice Marco Polo Airport as its
origin or destination using the ACTV bus services no. 4, 15, 45 and 5 Aerobus.