in smooth water

in smooth water(s)

1. Literally, in or on a body of water that is completely undisturbed by wind or rain. If you're only comfortable swimming in smooth water, you won't be prepared for the conditions a lifeguard has to face. There's nothing better than getting out on the jet ski on a day like today and carving figure-eights in smooth water.
2. By extension, facing no or very few difficulties or disruptions. We'll be in smooth waters if we can secure a new loan extension from the bank. Investors must not become complacent that the economy is in smooth water, as there are still a number of factors that could lead to another reception.
See also: smooth

in smooth water

in quiet and serene circumstances, especially after difficulties.
See also: smooth, water