Bligh had confidence in his navigational skills, which he had perfected under the instruction of Captain James Cook. His first responsibility was to bring his men to safety. Thus, he undertook the seemingly impossible voyage to Timor, the nearest European settlement. Bligh succeeded in reaching Timor after a 47-day voyage, the only casualty being the crewman killed on Tofua. From 4 May until 29 May, when they reached the Great Barrier Reef north of Australia, the 18 men lived on of bread per day. The weather was often stormy, and they were in constant fear of foundering due to the boat's heavily laden condition. On 29 May they landed on a small island off the coast of Australia, which they named Restoration Island, 29 May 1660 being the date of the restoration of the English monarchy after the English Civil War. Over the next week or more they island-hopped north along the Great Barrier reef—while Bligh, cartographer as always, sketched maps of the coast. Early in June they passed through the Endeavour Strait and sailed again on the open sea until they reached Coupang, a settlement on Timor, on 14 June 1789. Several of the men who survived this arduous voyage with him were so weak that they soon died of sickness, possibly malaria, in the pestilential Dutch East Indies port of Batavia, the present-day Indonesian capital of Jakarta, as they waited for transport to Britain.