The bay was a popular picnic destination in the early 20th century, but retained its serenity and wildness throughout. In the early 20th century, the bay was dredged for
oysters. A jetty was proposed for Louth Bay in the 1878, and was constructed around that time. In 1908, the structure was damaged, allegedly by a ship. In 1949, the Government announced that it was seeking to demolish the Louth Bay jetty, and called for tenders. This was met by objections and a petition, leading to a delayed decision. In the late 20th century, aquaculture became an important industry for Louth Bay, though fishermen and local residents have expressed concerned about stock escapees and pollution impacts from existing operations. Concerns included algal growth and seagrass degradation,
plastic pollution and the loss of amenity. == Incidents ==