Ferry route not routing in OSM

On OSM, it shows a ferry route between Montserrat and Nevis. This also exists as a way (Way: ‪Montserrat-Nevis‬ (‪1243741932‬) | OpenStreetMap). However, when I try to route it walking between the ferry terminals, it says that there it couldn’t find a route between them on all three engines. Could someone help?

This seems also to be a problem with many ferry routes, e.g. St. George’s to Carriacou

The ferry was mapped an hour ago? The routers need some time to update the routing data.
However, the OSRM instance has problems with ferries:

Valhalla and GraphHopper should work after an update.