Roberts was quarantined at Malta after the completion of his journey to the Holy Land during May and June of 1839. This watercolour shows Valletta’s Marsamuscetto Harbour viewed from his room in the fort. Despite the large size, Roberts wrote in a letter that he felt little inclination to work. He found the heat made working difficult, and confessed that "I am now tired, tired of it, and unfortunately after Egypt and Syria everything loses". In the National Museum of Fine Arts in Malta there is another watercolour by Roberts of Valletta, showing a view of the Grand Harbour.