What color is the water?
Answer the question using just one word or a concise phrase.

blue

Is this a high speed train?

no

Is the water choppy?

no

What kind of boat is this?

ferry

Are there building at the back?

no

Can you see mountains in the picture?

no

What is green in this photo?

trees

What time of day is it?

noon

What sky is blue?

one above lake