The adjective accessible means something that is easy to reach and get.
Synonyms are available, handy, usable, or approachable.
The word origins from Middle French (14th century) accessible meaning “affording access, capable of being approached or reached” (source also from Late Latin accessibilis, verbal adjective from Latin accessus meaning “a coming near, an approach, an entrance” from accedere meaning “approach, go to, come near, enter upon”.
The harbor is also accessible even to large vessels.
Unfortunately, the docks are accessible only at high water.
She picked the spot nearest to the river where water is most accessible.