"great waves" is correct and usable in written English.
You can use it to describe large waves in any context. For example: "The boat rocked against the great waves of the sea."
"It's got great beaches, great waves.
It made a mark but no great waves.
It generated, in a fair percentage of subjects, great waves of lust.
Not great waves, but good enough — slow and smooth and definitely surfable.
In some cases there are several great waves separated by intervals of several minutes or more.
Keynes believed that great waves of optimism and pessimism are what drive major economic fluctuations.
The Black Death is the middle of three great waves of plague in history.
The bedrock is crumpled into great waves underneath its thin veneer of soil.
Shaffer was the right man to provide great waves of acting.
"Great waves, not too many people, lots of eccentrics, and everybody pretty much knowing everybody else".
"I'd be bored because there were great waves but no music, so I decided to start this festival.
