The coast, charted.
11,000+ verified places.

The Mediterranean, Aegean, Marmara, and Black Sea coasts are charted with the highest density of 11,000+ charted anchorages, ruins, and marinas. Any other coastline on Earth fills in dynamically on demand from OpenStreetMap vector geometry as you explore.

Atlas charts eleven kinds of place across eight switchable layers: marinas, harbours, anchorages, beaches, ancient and historic sites, museums, dive sites, lighthouses, restaurants, marine services, and regattas. Layers can be switched on and off independently to keep your chart uncluttered.

No. MARLOG Atlas is an expedition, discovery, and coastal reference instrument, not an official Electronic Chart Display and Information System (ECDIS). Mariners must always carry official hydrographic charts for legal navigation decisions.

When you navigate within 200 metres of a charted place (anchorage, ruin, lighthouse), the app uses hardware GPS to verify your physical presence. Logging the visit records it to your mariner logbook and unlocks authentic expedition badges with no remote check-ins.

When you pan into an unindexed stretch of coastline anywhere on the globe, The basemap already covers every coast on Earth, so it renders in MARLOG’s high-contrast dark theme immediately.

Atlas requires an active connection to download new map regions and live place data. However, your last active charted position and recently viewed areas are cached locally so the chart immediately opens where you left it.

Yes. The integrated Route Ruler tool allows you to lay points across open water to calculate total distance in nautical miles (NM), true bearings, and estimated passage time at a six-knot cruising speed.