Giant's __; Basalt Columns Off Antrim's Coast
This page is the CodyCross answer for the clue below from Cruise Ship, Group 645, Puzzle 3 (Captain and Crew).
Question is: Giant's __; Basalt Columns Off Antrim's Coast
and the answer is: CAUSEWAY
Word Meaning:
CAUSEWAY — A road that is raised so as to be above water, marshland, and similar low-lying obstacles, which in some cases may flood periodically (e.g. due to tides). Originally causeways were much like dykes, generally pierced to let water through, whereas many modern causeways are more like bridges or viaducts.
Definitions from Wiktionary.