]During 1788, Bradley did not involve himself directly in colonial affairs, but instead joined
John Hunter in extensive operations along the
Sydney Harbour coastline. The two men were often away from the colony for extended periods, conducting surveys of the coastline and the lands around. File:SLNSW 868573 William Bradley Journal titled A Voyage to New South Wales December 1786 May 1792 compiled 1802.jpg|thumb|Journal by William Bradley held by the
State Library of New South Wales, Safe 1 / 14 Op p.65 In October 1788, Bradley joined a six-month
circumnavigation of the globe to collect supplies for the colony from the
Cape of Good Hope. Returning in March 1789, Bradley worked on the repair of
Sirius, combined with further survey and more observations of Aboriginal communities. His previously positive view of the Aboriginal people gradually soured into a general hostility. In November 1789 He took part in a raid which captured local Aboriginal leaders
Colbee and
Bennelong, a duty which Bradley described as extremely unpleasant. In 1790,
Sirius and were dispatched to
Norfolk Island in search of better food supplies. At Norfolk Island, the Sirius was caught in a storm and wrecked. Marooned on the island, Bradley his crew conducted extensive surveys of the land during the eleven months spent there. In 1791, Bradley and others returned to
Port Jackson and from there took a ship to the
Philippines and then to
Britain. The ships arrived in 1792 and the crews were court-martialled for the loss of
Sirius, but honourably acquitted. ==French Revolutionary Wars==