Tennyson's description of the lake into which an anguished Arthur throws his sword Excalibur is based on Bassenthwaite.
The author came here and thought "This looks like a fun place to throw a sword".
mnli hypothesis: The author came here and thought "This looks like a fun place to throw a sword". premise: Tennyson's description of the lake into which an anguished Arthur throws his sword Excalibur is based on Bassenthwaite.