Ground rule: Navigate with HTML GET links to keep explanations and relationships. Use the page's JSON alternative only when concrete values must be extracted, compared or computed.
How to use the port page
Use the port ID and code for identification. Port-call connections describe reported relations in the selected period, not necessarily a current timetable.
Open the port as a place for weather, vessels, charging and geographic context. Use Entur separately if the question concerns onward public transport from the port.