We went to Venice in May05 and used a private water taxi for 10 people and it was about 15eur a person. Our hotel gave me their number and I called the day before our flight and gave them our flight#/airline. I called when we arrived and they were there when we were ready to leave the airport. The same private taxi picked us up to go to the cruise port the next day and we also made a reservation for them to pick us up on our return from the cruise. We stayed at Hotel Al Piave, great small hotel go to their website and they were great communicating thru e-mail. The water taxi ride from the hotel to port was about a 15 or 20min ride.