At anchor off Zanzibar. Wind SSW force 2 with broken cloud. Barometer 30.15 inches rising to 30.22 at noon before falling to 30.12 at 1600 and then rising to 30.18 inches at midnight. Temperature at noon 79F. 0550. Weighed and proceeded out of anchorage. Proceeded at 95 revolutions 9/10 knots. Course as requisite. 0900. Shaped to NE by N. Ras Nungwi abeam. Cleaning ship throughout. 1000. Observed Pemba Island on starboard beam. 1100. Altered course to NE by N ½ N. 1140. Altered course to NNE. Position at noon 5.9S 39.25E. 1300. Altered course to N by E ½ E. speed 10.5 knots. Cleaning ship. 1600. Washed clothes. 1640 made number to HMS Reindeer.in Mombasa Harbour. 1720. Stopped and came to with broken bottom in 14 fathoms and veered to 3 shackles. Banked fires. Draught of water forward 14 feet 4 inches. Aft 15 feet 10 inches. Anchorage bearings Mission House N4W. Fort N43E magnetic. Coal expended 14 tons 2 cwt. Number on sick list 16.