All 4 Uses of

excursion
in
Sense and Sensibility

Their intended excursion to Whitwell turned out very different from what Elinor had expected.†
Chpt 13 *

In a morning's excursion to Exeter, they had met with two young ladies, whom Mrs. Jennings had the satisfaction of discovering to be her relations, and this was enough for Sir John to invite them directly to the park, as soon as their present engagements at Exeter were over.†
Chpt 21

On being informed of the invitation, Mrs. Dashwood, persuaded that such an excursion would be productive of much amusement to both her daughters, and perceiving through all her affectionate attention to herself, how much the heart of Marianne was in it, would not hear of their declining the offer upon HER account; insisted on their both accepting it directly; and then began to foresee, with her usual cheerfulness, a variety of advantages that would accrue to them all, from this separation.†
Chpt 25

She returned just in time to join the others as they quitted the house, on an excursion through its more immediate premises;†
Chpt 42

Definition:

a short journey taken for pleasure

or:

a digression from the main path of a journey