MEANS of TRANSPORTATION

123456
Across
  1. 1. is small and travel by water
  2. 3. in the water you can see under the sea
  3. 5. travel by air
Down
  1. 2. in air you may go to travel another countries
  2. 3. travel by water
  3. 4. in land have 2 wheels
  4. 6. travel by land