Tides
Charts
AIS
Sky
Bathymetry
API
About

Tides
Charts
AIS
Sky
Bathymetry
API
About

Seamap Viewer

Seamap·A nautical-themed map with depths, seamarks, and hazards. About

Open source marine software and data.

Projects

Tides
Charts
AIS
AIS live map
Sky
Bathymetry

Developers

API reference
Tide database
GitHub
Discord

Open Waters

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Predictions · not for navigation