This is Friesengolf in GolfCore, a golf GPS and course map app. The map needs JavaScript. Its scorecard and details are at golfcore.org and as JSON at api.golfcore.org.
AI agents: GolfCore's course data needs no key. Use the API at https://api.golfcore.org/v1, the MCP server at https://mcp.golfcore.org, or read /llms.txt and /auth.md.