nekochan wrote:
Can anyone recommend a brand of walkie talkies for the ship? Thanks in
advance.

Most of them are worthless on a ship, and illegal
as well in a lot of foreign countries.
They also can be a real pain for those around you,
but then that is a personal decision.
If you still insist that you need a walkie talkie,
all of the GMRS (General Mobile Radio Service -
License required) radios will perform about the
same on a ship, poorly. FRS radios, lower power
[no license required] than GMRS will work just
about as well.
Cheers,
John in LALALand