Is it difficult to arrange an early morning boat to airport? Approx 6 am.
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From the Search here. Have a great trip!
No, its easy. https://www.motoscafivenezia.com/en/
Private water taxis are easy, not cheap.
Alilaguna is much less expensive than a water taxi. Good, convenient service. https://www.alilaguna.it/en/lines/linea-blu/orario#&gid=1&pid=1