Nautical chart C-map - M-RS-Y611-MS - Onezhskoe lake and Svir

This C-map Discover Medium digital nautical chart covers : Onezhskoe lake and Svir

We strive to market only the latest versions.

C-MAP charts are only available on SD / Micro SD cards with adapter; Compact Flash is no longer offered.

For over 30 years, more than one million sailors worldwide have trusted C-MAP electronic charts. C-MAP vector charts by Jeppesen offer unmatched navigational detail and are compatible with many brands of chartplotters and PC navigation software. Advanced navigation features and exclusive value-added data make C-MAP solutions by Jeppesen essential.

The C-MAP charts we sell are designed for chartplotters. They are not compatible with smartphones or tablets.

C-MAP Marine Charts: Accurate Mapping for Modern Navigation

C-MAP marine charts cover a wide variety of navigation areas worldwide, with particular attention to coastal zones, busy routes, and complex environments. Whether you are navigating in the Atlantic, the English Channel, the Mediterranean, or inland waters, these charts are designed to provide a reliable and detailed view of your surroundings.

Choosing the right marine chart is not just a matter of comfort?it is above all a matter of safety. Accurate mapping helps anticipate hazards, understand seabed configurations, and comply with regulations. C-MAP charts meet these requirements by combining hydrographic data, modern technologies, and optimized readability.

What is a C-MAP marine chart used for?

A C-MAP chart is a navigation aid that supports sailors at every stage of their journey, from planning to execution.

It allows you to:

• Plan a route while considering depths and obstacles
• Clearly identify channels, buoys, and regulated areas
• Locate ports, marinas, anchorages, and sheltered zones
• Secure navigation through sensitive areas (estuaries, passes, rocky zones)

In practical situations, it is used to:

• Enter an unfamiliar port with precision
• Navigate along complex coastlines or strong currents
• Prepare a cruise with multiple stopovers
• Optimize fishing areas through detailed seabed reading

Compared to standard charts or simple mobile apps, C-MAP stands out thanks to its structured data and advanced navigation features.

Who are these charts for?

C-MAP charts are appreciated for their versatility and level of detail, making them suitable for many users.

They are suitable for:

• Beginner boaters looking for a clear and structured interface
• Experienced sailors seeking precision and reliability
• Professionals needing a high-performance complementary tool

They are adapted to:

• Day and night navigation
• Occasional or intensive use
• Coastal and semi-offshore navigation

In terms of equipment, C-MAP charts are designed to work with:

• Compatible GPS chartplotters
• Modern onboard systems
• Certain navigation software

They allow every sailor to equip themselves with a coherent and scalable solution.

Reading and Understanding the Chart

Readability is a key feature of C-MAP charts, with information organized for fast and efficient interpretation.

The chart scale directly influences its use:

• Detailed scale: ideal for approaches, ports, and technical areas
• Wide scale: suited for offshore navigation

Key information available:

• Detailed bathymetry with depth contours
• Maritime buoyage compliant with international standards
• Hazard marking: rocks, wrecks, shoals
• Infrastructure: ports, marinas, anchorage areas

For optimal use, the navigator must:

• Master nautical symbols
• Understand tidal impacts on depth
• Adapt reading based on weather and visibility

A well-read chart allows anticipation rather than reaction.

Reliability, Updates, and Safety

C-MAP charts rely on data from reliable hydrographic sources, enhanced by advanced processing technologies.

Updates:

• Available regularly depending on versions
• Include changes in buoyage and infrastructure
• Maintain a high level of reliability

Why is this essential?

The marine environment constantly evolves: channels may shift, buoys may move, and new hazards may appear. Navigating with up-to-date charts significantly reduces risks.

C-MAP charts are compatible with modern positioning systems (notably WGS 84), ensuring consistency between GPS position and displayed mapping.

Best practices:

• Update your charts regularly
• Cross-check information between sources
• Maintain a cautious approach, even with high-performance tools

Safety always relies on a combination of tools and vigilance.

Paper vs Digital Charts: When and Why Choose This Format

C-MAP charts are primarily digital, but the choice of medium remains important in an overall navigation strategy.

Advantages of digital (C-MAP):

• Interactive and customizable data
• Advanced zoom and display filters
• Direct integration with onboard instruments

Why keep a paper chart as well?

• Backup in case of electronic failure
• Broader overview
• Useful for navigation planning

In practice, experienced navigators combine both formats to maximize safety and efficiency.

Why Choose This Marine Chart (Publisher + Nautic Way Selection)

C-MAP has become a leading player in digital nautical cartography, notably thanks to its integration with many onboard electronic systems.

Key strengths:

• Detailed and structured data
• Advanced navigation assistance features
• Wide compatibility with equipment

The Nautic Way selection adds real value:

• Careful selection of the most relevant areas
• Up-to-date products adapted to real-world use
• Support based on professional expertise

Nautic Way does more than distribute: it guides, secures, and simplifies the navigator?s choice.

Expert FAQ

Which C-MAP chart should I choose for my area?
It depends on your navigation zone and the level of detail required. Choose a chart that precisely covers your area with good coastal resolution.

Is this chart sufficient on its own?
No. Like any chart, it should be used alongside other tools (GPS, radar, visual observation).

How often should it be updated?
It is recommended to check for updates before each season or major navigation.

Can C-MAP be used with all GPS devices?
C-MAP charts are compatible with many chartplotters, but compatibility must always be verified.

What is the difference with Navionics?
C-MAP offers different data structuring and specific features depending on the device. The choice depends on your equipment and preferences.

Is it suitable for offshore navigation?
Yes, provided you select a chart covering the relevant area and integrate it into a complete navigation strategy.

Are Navionics charts compatible with all readers/plotters?

No. Please use the filters on our Google Map:
1 - Select chartplotter or routing software
2 -Select brand
3 -Select model
4 -Select hydrographic service or publisher
5 - Select chart status
6 - Select compatible charts
If in doubt, please contact us.

Conclusion

C-MAP marine charts are part of a modern approach to navigation, where accuracy, interactivity, and reliability play a central role.

Used intelligently and alongside other tools, they help sailors better understand their environment and navigate safely in all conditions.

All Navionics digital charts are produced on demand and include the latest updates. For obsolescence reasons, they cannot be returned or exchanged.

Navionics Compatibility Verification Procedure

• First check: Navionics charts are only compatible with certain readers (plotters).

WE STRONGLY RECOMMEND USING THE FILTERS ON OUR GOOGLE MAP TO VERIFY COMPATIBILITY WITH YOUR EQUIPMENT: BRAND / MODEL / AREA.

• Second check: When placing your order, please specify in the designated text field (next to shipping options) the brand and model of the device or software intended to use this chart. We will perform a compatibility double-check.