Garmin BlueChart g 2Ö. BlueChart g2 has all the detail of traditional BlueChart, but with 3D perspective, and richer detail and content. These charts feature integrated maps for a much smoother presentation and a growing worldwide database of high-quality photos of harbors, ports, marinas and coastal features. Best of all, its new 3D perspective lets you visualize map detail from a ômariners-eye-viewö vantage point for more intuitive orientation. BlueChart g2 is available on Garmin preprogrammed data cards. Click on a zone below to view region coverage and purchase BlueChart g2 data cards. BlueChart g2 Southeast Caribbean (2US030R) Haiti, Trinidad & Tobago, Puerto Rico, the Lesser Antilles, and the Colombian and Venezuelan coasts.