aim
aiming
binoculars
coast
coastguard
coin telescope
control
distance
espionage
far
farsighted
foresight
guard
horizon
increase
lake
look
looking
looking ahead
lookout platform
magnify
maritime
navigation
objective
ocean
optician
optics
overview
perspective
point
precaution
prospect
proximity
recognize
red
sea
sea voyage
search
searching
seeing
shortsighted
sighting
spying
supervision
survey
taking precautions
telescope
view
visual aid
width
zoom