The v2 format is no longer officially updated by C-MAP. Most CM93 v2 datasets circulating online are from the mid-2010s. They do not account for new wrecks, shifted sandbars, or updated buoyage. Accuracy Issues:
, the popular open-source navigation software. Note that Version 3 (CM93 v3) is not compatible with OpenCPN. cm93 v2 charts download
Safe for route planning and familiarization (e.g., checking if a passage is feasible), but dangerous for primary navigation in unfamiliar or changing waters. The v2 format is no longer officially updated by C-MAP
The v2 format is no longer officially updated by C-MAP. Most CM93 v2 datasets circulating online are from the mid-2010s. They do not account for new wrecks, shifted sandbars, or updated buoyage. Accuracy Issues:
, the popular open-source navigation software. Note that Version 3 (CM93 v3) is not compatible with OpenCPN.
Safe for route planning and familiarization (e.g., checking if a passage is feasible), but dangerous for primary navigation in unfamiliar or changing waters.