Coastline and high definition bathymetry improvements have been made to Canandaigua Lake in New York. Update your Boating app and your HotMaps Platinum East, Navionics+ US & Canada or Navionics+ Regions East plotter cards to take advantage of the changes.
https://www.navionics.com/usa/blog/post/canandaigua-lake-bathymetry-and-other-improvements/