A rare pure collision case in the Admiralty Court today in Nautical Challenge Ltd v Evergreen Marine (UK) Ltd  EWHC 453 (Admty). Suppose Vessel A is coming out of a narrow channel and Vessel B is entering it: suppose further that Vessel A is approaching Vessel B on the latter’s starboard bow. The Colregs crossing rule says Vessel A has priority: the narrow channel rule says Vessel A must manoeuvre to pass Vessel B port to port. Which applies? Teare J has little doubt: it’s the narrow channel rule, following the Hong Kong decision in Kulemesin v HKSAR  16 HKCFA 195. Useful to know, and to clear up a long-standing controversy.