This is correct and usable in written English.
It can be used to refer to a specific trip or journey that usually leads to some educational experience. For example: "The students went on an excursion to learn about the local history."
Today was such a nice day maybe they decided to go on an excursion and enjoy themselves a bit".
You can get to Sian Ka'an under your own steam (aim for the entry gate at Muyil, just south of Tulum) but the best way is to go on an excursion with an experienced guide.
Another inspiration was "Lovers and Lollipops," the Morris Engel and Ruth Orkin feature in which a widow, her new suitor and her daughter go on an excursion around New York City.
They'll also go on an excursion to Isla Espiritu, where they can swim with whale sharks and see manta rays, seals and other marine life.
Twenty-five yearlierrlier, when they were still a young couple, they went on an excursion to Djursholm on one of the first Sundays in May.
The next morning we went on an excursion to the port of Durres and to Berat, a town in the mountains.
He said that on the last day of his trip he had gone on an excursion with another Swiss lawyer, Karl Eckstein, to the historic city of Vladimir, 112 miles east of Moscow.
Having gone to Utrecht in the Netherlands as tutor to two young gentlemen in 1741, he went on an excursion to Spain in 1745 and there met the English political radical John Wilkes, for whose intellect he conceived a fervent admiration subsequently expressed in a number of letters.
You can then pledge your support at a number of levels: from buying the ebook (generally £10), through purchasing the hardback (usually £20) or a signed copy (£50), all the way up to being invited to the launch party (typically £150) or, sometimes, going on an excursion with the author.
Monkeys and Crocs and Croaks, Oh My! Today we went on an excursion to the landscapes of Northern Singapore, and boy there was much to see!
