Studying naval medicine means shifting our gaze beyond the ship or the hospital to consider the interconnectivity of naval medicine as shown in the cyclical nature of care provision. This medical system was exemplified in the journey of the sick or wounded sailor from his ship to hospital and back. Conceiving of naval medicine as a system of care allows for equal weight to be given to each stage of medical care delivery, re-integrating hospitals ships, hospitals, and convalescent ships into the naval medicine narrative. However, without employing digital humanities methodologies such as Historical Geographical Information Systems (HGIS), the importance of hospital ships to the functioning of the British naval medical system would likely be lost in a series of disparate records. Among these records are log books for hospital ships. These log books kept by Lieutenants (National Maritime Museum) and Captains (National Archives) contain detailed information about patients received on board, medical supplies transported, and the daily location of the hospital ship while at sea. Using the longitude and latitude coordinates for hospital ships, I map their location using HGIS. This allows me to visually demonstrate a naval system of care, and highlight the connectivity of such a system. When hospital ships had previously been mentioned by medical historians they were often viewed in the same way as prison hulks, providing a space to contain patients and prevent desertion of impressed men. However, the role of hospital ships in transferring medical supplies to the fleet and taking sick and wounded back to shore for care in hospital, as demonstrated though HGIS mapping, showcases the role of such floating hospitals in medical care.