the high point/spot of something

high point (of something)

A particularly successful, enjoyable, or proud period or moment (of something). Being named Poet Laureate was definitely the high point of my career. The sudden—and frankly surprising—success of my second book was definitely a high point, but I write for the love of telling stories, not the success it might bring.
See also: high, point

the ˈhigh point/spot of something

the best, most interesting, entertaining, etc. part of something: The high spot of our trip was the visit to Rome.It was the high point of the evening.
See also: high, of, point, something, spot