Observation Platform on a Ship

This page is the CodyCross answer for the clue below from The Netherlands, Group 2112, Puzzle 1 (Van Nelle Factory).

Question is: Observation Platform on a Ship

and the answer is: MAINTOP

Word Meaning:

MAINTOP — (nautical) A platform at the top of a square-rigged vessel's mainmast; used for observation and for the attachment of rigging.

Definitions from Wiktionary.