alone
blind
blindfolded
boundary
briefcase
brink
business
businessman
challenge
cliff
concept
covered
crevasse
danger
dangerous
deluded
difficulty
edge
endpoint
eyes
full length
hands over eyes
ignorance
into the unknown
man
mountain
obstacle
obstruction
outdoors
outside
over the edge
problem
restricted
risk
risky
rock
rocks
rocky
standing
stepping
suit
top
trepidation
unaware
unseeing
unseen
unsighted
vision
visionless
walk
walking