浜辺
aid
assistance
belt
blue
buoy
circle
concept
crisis
emergency
equipment
first
help
inflatable
lake
life
lifebelt
lifeguard
lifesaver
lifesaving
nautical
object
pool
protect
protection
red
rescue
ring
ringbuoy
safe
safety
sailing
salvation
save
sea
secure
security
service
shipwreck
sos
support
survival
swim
urgency
water
waves
white