. Since CM93/2 is no longer officially supported by C-Map (which moved to the encrypted CM93/3 format), these charts are primarily available through community-maintained archives and peer-to-peer sites. Finding and Downloading CM93 v2 Charts Archive Sources : Sites like Sailing Amazing Grace SV Soggy Paws
: Most downloads provide a massive dataset (often ~1.7 GB) covering most of the world's oceans and coastal regions.
For cruising sailors, (paid, but very affordable) offers updated vector maps for OpenCPN. Alternatively, some navigators use raster chart collections that are legally released by hydrographic offices.
: Some online repositories or digital archives might host these charts, either for free or under a subscription model.
Marine forums and file-sharing sites occasionally host "vintage" versions (such as the 2011, 2015, or 2018 editions). Verification: Ensure you are downloading . You can identify it by looking for a file (e.g., 20110803.EXD