Three hitherto undocumented watercolours in the possession of the National Botanic Gardens, Dublin, are found to depict botanically interesting views of Falkland Islands' vegetation and an historically important painting of Port Louis about 1842, when it was the capital of the archipelago. From the evidence available it seems clear that these paintings were prepared by either Bartholomew J. Sulivan or his wife during a surveying voyage to the Falkland Islands in 1842–43, when he commanded the brig Philomel. Some associated herbarium specimens seem to have been collected by B. J. Sulivan during 1838 when he visited the Falkland Islands as Lieutenant aboard the surveying ketch Arrow.