Komati River
Carolina was rebuilt after it was razed in 1900 during the Second Boer War. A few examples of sandstone architecture are still to be found among Carolina's public buildings. The sandstone Grobler Bridge which crosses the Komati River on the present R36 route to Machadodorp was opened for traffic in 1897. It was named after Johannes Lodewikus Grobler. The cornerstone of the Dutch Reformed Church was laid by Commandant General Piet Joubert in October 1888. This building was severely damaged during the Second Boer War and used as a horse stable by British troops. The Ermelo Railway Company completed the Ermelo–Carolina–Machadodorp railway line in 1907. This placed Carolina on the trade route with Swaziland (now Eswatini). The Komati River and associated Komati Gorge are situated in the vicinity of Carolina.