Answer: seaplanes

AnswerCrossword Clue
SEAPLANESThey're supported by floats
SEAPLANESFliers with pontoons
SEAPLANESLake landers
SEAPLANESWater landers
SEAPLANESAmphibians.
SEAPLANESAircraft.
SEAPLANESNavy Dumbos.
SEAPLANESIsland hoppers
SEAPLANESTransportation between some Alaskan cities
seaplanesSEAPLANE, a plane designed for landing on water
seaplanesAn aircraft with floats instead of wheels, designed to land on and take off from water