sea-excursions
Noun
1
a
: a going out or forth : EXPEDITION
b(1)
: a usually brief pleasure trip
(2)
: a trip at special reduced rates
2
: deviation from a direct, definite, or proper course
especially : DIGRESSION
needless excursions into abstruse theory
3
: a movement outward and back or from a mean position or axis
also : the distance traversed : AMPLITUDE
the excursion of a piston
Source