It is covered with eelgrass and doesn't show.

We shall have to go a half mile further before we turn in." "A half mile! Why, confound it! it's past one o'clock now.

We haven't any time to waste." "I'm sorry, but we can't cross yet.

And, if I were you, I shouldn't stand up in that boat." He paid no attention to this suggestion.
"There are half a dozen boats, bigger than these, by the landing," he declared.

"There is water enough for them.