Just found out that the weekend we will be in Venice coincides with Vogalonga. We arrive at 9;30am Friday, June 6. We have the Secret Itineraries tour on Sat. morning (I believe it's 11:00 or 11:30am). We were planning to visit Burano and Murano on Sunday, but now we may have to change plans due to Vogalonga. Should we go Friday after we arrive, Saturday after the Doge tour or keep to our original plan and go Sunday? Am already trying to make dinner reservations because I know the city will be more crowded than usual, if that's possible.