See the attached map. Viewed from St. Maarten, St. Kitts is obvious -- but Nevis is tucked behind St. Kitts. On images from Google maps, "Gustavia" indicates St. Barts, "The Bottom" indicates Saba, "Oranjestad" indicates Statia, and "Charlestown" indicates Nevis. (Google maps seems to think that people are more interested in the names of towns than the names of islands.)