The TAR Veneto (Tribunale amministrativo regionale del Veneto) has held a preliminary hearing on October 3rd, to express judgment on the suspension of the kayaking ban.
This post explains in more details where you can go kayaking and when in Venice with the August 1st 2018 ban in force.
Press release announcing the legal recourse at the TAR Veneto against the decision 433/2018 of the City of Venice, sent to the local Venetian press on Monday, September 3rd, 2018:
The City of Venice has banned kayaks in Venice at almost all times, so Venice Kayak can only do a few of the tours advertised on our web site.
Venice bans kayaks and other small boats, favouring damaging and polluting motor traffic over lighter ecological and sustainable means of transport. A ban on kayaking is not the right way forward for Venice.