The phrase "a climax at" is correct and usable in written English.
It can be used to describe a peak moment or turning point in a narrative, event, or situation.
Example: "The story reached a climax at the moment when the hero confronted the villain."
Alternatives: "a peak at" or "a turning point at".
The roar became deafening and reached a climax at the final whistle.
WASHINGTON — The Federal Reserve hoped that its three-year-old economic rescue campaign would reach a climax at the end of June.
But there is still, for example, Papua.REDD forms part of the negotiations on a successor to the Kyoto protocol, which will reach a climax at meetings in Copenhagen this December.
Parvati's story moves from the village of her childhood to the austere confines of the school and finally to a climax at a maharajah's palace; and every locale emerges in precisely delineated color, sound and sensibility.
The Triple Tiara, New York's version of the Triple Crown for fillies, reaches a climax at Belmont Park tomorrow with the $300,000 Coaching Club American Oaks at a mile and one-half.
This was supposed to reach something of a climax at the end of 2015, with the birth of the ASEAN Community, which would set up an "economic community", turning a region of 630m people into a "single market and a single production base".
They have their typical airy sound building up to a climax and, at Glastonbury at 11pm, it would create a really mad live experience.
Members of the governing coalition said that with the crisis coming to a climax, momentum at the negotiating table could shift in favor of the pro-Western bloc.
John Betjeman, writing in The Daily Telegraph, considered that "Ian Fleming has discovered the secret of the narrative art ... which is to work up to a climax unrevealed at the end of each chapter.
The feud between Brock Lesnar and Undertaker came to a bloody climax at Hell In A Cell, but while the Beast Incarnate was able to walk away with his second victory over the Deadman, the Phenom finds himself trapped in the weird world of the Wyatt Family.
After an emphatic climax, "At Last a Dragon" used an enhanced version of the main theme with more extravagant use of electric guitar.
