Anjalankoski is a former Finnish municipality that merged into Kouvola in 2009. It sits in the Kymijoki river valley between Kotka on the coast and Kouvola to the north, and like much of this part of southern Finland its landscape is shaped by the paper and pulp industry that once defined the region.
Three railway stations — Inkeroinen, Kaipiainen, and Myllykoski — serve the area on the main Helsinki–Kouvola line, making it easy to pass through. There's little specific reason to stop unless you're exploring the Kymijoki valley or visiting locals, but the river scenery is pleasant and the pace is as unhurried as rural Finland gets. If you do stop, the historical highlight is Anjala Manor, set on a bend of the river and the site of a famous 1788 conspiracy against the Swedish king.