As with all broads, mud weight at the windward end under the shelter of trees to reduce the chance of Dragging...
If you're going to mud weight on Wroxham broad, then please keep out of the way of the racing marks, and generally out of the middle of the broad.
If racing has resumed and your in the middle or by a buoy, you'll get a very annoyed rescue boat coming for a visit to tell you to move..
Oh mud weighting in the navigational channel, even if next to the bank is Technically illegal.. (Broads reg 64) which just about means any river.