Garmin BlueChart g3 and g3 Vision Marine Charts

• Garmin BlueCharts
• Garmin BlueChart Europe
• Garmin BlueChart North America
• Garmin Navionics+
• New Chart Guarantee
• BlueChart g3 Update Card
• Useful links
• Marine Accessories
• Marine Transducers
• Marine Chartplotters
• Marine Handheld GPS

Garmin BlueChart Deliveries ONLY

Garmin BlueChart titles are supplied to order directly by Garmin and are not held in stock. Please allow approximately 7-10 working days for dispatch. Ordering to order means you receive the current chart release, presently v2026.

We offer FREE UK delivery on all orders of £50.00 or more. View all delivery options. Delivery options also appear at the basket pages.

Garmin BlueChart Buying Guide

BlueChart g3 and g3 Vision: What is the Difference?

Garmin BlueChart g3 is the standard chart format, providing detailed coastal data and Navionics inland waters coverage supplied on SD/microSD card. BlueChart g3 Vision adds Auto Guidance route planning, which calculates a route based on your desired minimum depth and overhead clearance, and is available in small, regular and large coverage sizes. Both formats include Garmin coastal data and Navionics inland waters content for your chosen coverage area.

Auto Guidance

Auto Guidance is a feature on BlueChart g3 Vision charts that calculates a suggested route based on your specified desired depth and overhead clearance, and highlights nearby hazards along the way. The feature is designed to assist with passage planning rather than as a replacement for traditional navigation, and is available on g3 Vision charts only - not on standard BlueChart g3.

Depth Range Shading

BlueChart g3 charts display high-resolution depth range shading for up to 10 configurable depth ranges, allowing you to view your target depth at a glance. This is particularly useful for fishing and coastal navigation where a clear picture of depth variation is important.

Shallow Water Shading

Shallow water shading highlights areas below a user-defined depth threshold, giving a clear visual indication of shallow areas to avoid based on your vessel's draft. The shading depth can be set to suit the specific requirements of your vessel.

Detailed Contours

BlueChart g3 charts feature detailed 30cm (1 foot) depth contours, providing an accurate depiction of bottom structure in coastal and inshore waters. This level of contour detail is especially useful for fishing charts and when navigating areas with complex seafloor topography or port approaches.

Navionics Inland Waters

Following Garmin's acquisition of Navionics, BlueChart g3 charts include Navionics inland waters coverage alongside the coastal and sea chart data. This gives broader coverage for rivers, canals and inland lakes in addition to coastal navigation, making BlueChart g3 a comprehensive charting solution for mixed coastal and inland use.

Garmin Navionics+ as an Alternative

Customers who prefer a subscription-based chart model may wish to consider Garmin Navionics+ and Navionics Vision+, both of which are available from ActiveGPS for compatible Garmin chartplotters. Navionics+ is updated continuously, which suits customers who prefer to have their charts refreshed regularly rather than making a single annual chart purchase. Navionics Vision+ is the premium subscription tier, adding high-resolution relief shading and additional chart features.

BlueChart g3 Chart Compatibility

Garmin BlueChart g3 charts are compatible with a wide range of Garmin chartplotters and marine handheld GPS devices that accept SD or microSD cards. Always check compatibility on the individual chart product page before purchasing to confirm your device is supported.

Need Help Choosing?

Call us on 01733 777623 Monday to Friday, 9:30am to 5:00pm, for advice on which BlueChart title is right for your device and coverage area. You can also contact us online.

Garmin BlueChart Maps Questions and Answers

Question: What is the difference between Garmin BlueChart and Garmin Navionics+?

Answer: Garmin BlueChart g3 and g3 Vision charts are supplied on SD/microSD card and represent a one-off purchase for a specific coverage area. Garmin Navionics+ is a subscription-based chart service with continuous updates, available for compatible Garmin chartplotters. Customers who prefer regular chart updates rather than a single annual purchase may find Navionics+ more suitable. ActiveGPS stocks both BlueChart and Navionics+ charts.

Why Buy from ActiveGPS?

We are official authorised Garmin Internet Retailers, offering genuine Garmin products, accessories, and maps. All our stock is purchased directly from assigned Garmin UK distributors - we do not source from the grey market and never sell counterfeit products.

When you buy from ActiveGPS.co.uk, you can be confident that you’ll receive full Garmin support and the peace of mind that comes with purchasing authentic, reliable products.

This page was last updated on: 22nd September 2026