aid
assistance
belt
boat
buoy
coast
cruise
danger
deck
drowning
emergency
equipment
ferry
float
guard
help
life
lifebelt
lifebuoy
lifeguard
lifesaver
lifesaving
marine
nautical
ocean
orange
overboard
protect
protection
railing
red
rescue
ring
risk
safe
safety
sailing
save
saver
sea
secure
security
ship
sos
support
survival
swim
travel
water
white