About

What is OpenDiveMap?

OpenDiveMap is an open, community-driven database of dive sites around the world. Every record is a GeoJSON Feature with structured metadata — environment, topology, depth, entry type, and more.

The project exists because dive site data is scattered across closed platforms, paywalled apps, and personal logbooks. We believe this information should be free, structured, and accessible to everyone.

Principles

01 Open data. Everything is published under ODbL. Download it, use it, build on it.
02 Standard formats. GeoJSON (RFC 7946). No proprietary schemas. Any GIS tool can read it.
03 Community first. Every edit is versioned. Every change is traceable. Quality comes from the community.
04 Minimal by design. No bloat. The schema captures what matters for diving, nothing else.

The data

Each dive site record includes geographic coordinates (WGS 84), environment and topology classification, depth range, entry type, standardized region (ISO 3166-2), sea (Marine Regions MRGID), and a flexible tags field for additional metadata like local names. Every update is automatically versioned in a history table.

Contributing

The project is open source. If you're a diver with local knowledge, a developer who wants to help build the platform, or an organization that wants to integrate dive site data — we'd love to hear from you.