Shopping security
Whether you're chasing big game fish off the coast of Oahu, exploring hidden coves in Guam, or plotting a course through the remote atolls of the Marianas, having reliable charts makes all the difference. This chart package delivers intricate details of the Pacific Ocean stretch from the Hawaiian Islands to the Mariana Islands, encompassing key spots like Midway, Johnston Atoll, Palmyra Atoll, and general outlines of the Marshall Islands. Crisp vector graphics combined with high-definition shading help you spot reefs, channels, and drop-offs that could make or break your trip.
Boaters in this region face unique challenges—vast open waters, sudden depth changes, and isolated islands with minimal aids to navigation. These charts shine by blending proven Garmin mapping with enhanced data layers, giving you confidence whether you're day-tripping from Honolulu or embarking on a multi-island adventure.
Picture this: You're approaching a unfamiliar harbor at dusk. Instead of guessing, the system crunches your boat's draft, overhead obstacles like bridges, and preferred depth to plot a safe route right on your display. It's like having a seasoned local guide overlaid on your screen, updating in real-time as conditions shift.
Customize up to 10 depth bands to highlight exactly where fish might hold or where your hull stays safe. No more squinting at tiny numbers—color-coded zones let you gauge the bottom at a glance, ideal for trolling in variable Pacific terrain.
With contours as precise as one foot, you'll see the true shape of the seafloor, from marina docks to swampy inlets. Add user-set shallow water shading, and risky zones pop in contrasting hues, preventing those heart-stopping groundings common in coral-heavy areas.
Downloadable through a connected app, these raster overlays mimic traditional NOAA paper charts, complete with labeled points of interest tied to exact coordinates. Perfect for cross-referencing with older logs or verifying vector data in surveyed zones.
Users report fewer surprises and more productive outings, thanks to the fusion of Garmin's reliability with expanded data depth. It's not just a map—it's a tool that adapts to your style, from casual sailors to hardcore adventurers.
Designed for chart plotters that handle marine cards, it slots right in, unlocking layers without extra software. Pair it with modern multifunction displays for the full effect—zoom seamlessly from wide-ocean views to pinpoint dock edges. Regular updates keep your info fresh against shifting sands and new surveys.
The charts provide detailed coverage from the Hawaiian Islands across the Pacific to the Mariana Islands, including Guam, Midway, Johnston Atoll, Palmyra Atoll, and general views of the Marshall Islands.
It calculates suggested routes based on your vessel's depth requirements and overhead clearances, displaying a bricked path directly on the chart for easier navigation planning.
Yes, NOAA raster cartography is available as a free downloadable feature through the compatible app, offering paper-chart-like views with labeled coordinates in surveyed areas.
Up to 1-foot contours reveal precise bottom structure, while depth range and shallow water shading help identify fish-holding depths and avoid hazards in reefs and shallows.
It's designed for compatibility with chart plotters that support SD or microSD marine cards, ensuring quick and easy loading.
Users set a custom depth threshold, and the map shades shallower areas distinctly, providing a visual warning to steer clear of uncharted reefs or sandbars.
Blending Garmin's core mapping with additional sources creates clearer, more detailed views than standalone charts, improving both navigation and fishing success.
Experience unparalleled coverage and brilliant detail when you're on the water with charts that feature integrated Navionics ® data, Auto Guidance technology and more.
BlueChart® g3 HD - HXUS027R - Hawaiian Islands - Mariana Islands - microSD™/SD™
Coverage:
Coverage of the Pacific Ocean from the Hawaiian to Mariana Islands. Includes coverage of Guam, Midway, and Johnston Atoll. General coverage of Palmyra Atoll and the Marshall Islands also included.
Unparalleled Coastal Chart Coverage
BlueChart g3 coastal charts provide industry-leading coverage, clarity and detail with integrated Garmin and Navionics data. Also included is Auto Guidance¹ technology, which uses your desired depth and overhead clearance to calculate routes and provide a suggested path to follow — overlaid onto your chart. NOAA raster cartography is also available as a free downloadable feature via the ActiveCaptain app. It gives your chartplotter paper chartlike views of NOAA-surveyed areas in which individual points of interest are labeled with corresponding longitude and latitude information. Worldwide coverage is available by regions as accessory cards or via download; each region is sold separately.
Auto Guidance Technology
The Auto Guidance feature¹ calculates a suggested route using your desired depth and overhead clearance.
Depth Range Shading
This feature displays high-resolution Depth Range Shading for up to 10 depth ranges so you can view your designated target depth.
Detailed Contours
BlueChart g3 features up to 1’ contours, which provide a more accurate depiction of the bottom structure for improved fishing charts and navigation in swamps, canals and marinas.
Shallow Water Shading
To aid in navigation, Shallow Water Shading allows map shading at a user-defined depth to give a clear picture of shallow waters to avoid.
NOAA Raster Cartography
This feature gives your chartplotter paper chartlike views of NOAA-surveyed areas in which points of interest are labeled with corresponding longitude and latitude information.
¹Auto Guidance is for planning purposes only and does not replace safe navigation operations
²Raster cartography cannot be viewed on echoMAP CHIRP and ECHOMAP Plus combos but can be viewed on mobile devices via the ActiveCaptain mobile app .
Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
US$40
Get nowSign up to your membership to get coupons up to
15%
Get nowOpportunity to enjoy order discount up to 15% off
Top-Converting Item to Boost Your Average Order