The phrase "amazing to observe" is correct and usable in written English.
It can be used when expressing admiration or wonder about something that is being witnessed or experienced.
Example: "The wildlife in the national park was truly amazing to observe, with animals roaming freely in their natural habitat."
Alternatives: "incredible to witness" or "fascinating to see".
It was amazing to observe the speed with which the anti-Ross sentiment spread.
Speaking to her, it was amazing to observe not just the similarities between us, but the extent to which our childhoods had mirrored each other's.
There exists a fair degree of mechanization in agriculture, but it is still amazing to observe how much can be achieved through manual labor.
For me (Ken), it has also been amazing to observe Charity Navigator's tremendous influence on charities.
"It was amazing to observe the biggest planet of the solar system going behind our natural satellite!" exclaimed veteran night sky photographer Giuseppe Petricca, who watched the event from Pisa, Italy.
A wedding was planned while I was there and it was amazing to observe Tim and Lisa, the wedding couple, frolicking in the pool, dining with their guests, catching some rays, all without the slightest frisson of stress.
Their skill of hand is quite extreme, and they're amazing to watch," observed La Grue.
Read SophieScribe's review Read Simon Mason's review A gory tale set in the smoggy underworld of Victorian London, featuring a cast of talented freaks, among whom can be found the titular character, Wild Boy: a boy abandoned as a child and covered from head-to-toe in fur, who has developed an amazing ability to observe and absorb huge amounts of information about the people he meets.
"My idea for the train is based on the NYC wildlife, which I had the amazing opportunity to observe and study for a couple of weeks in November". Check out more of Pedro's art on his Instagram.
It was amazing to watch".
