Kate and Annie bays on the eastern side of Forsyth Island are very similar. Both have shingle beaches and some sand at low water. They are open to NE to S winds but give shelter in all other winds and can be used even in strong NW conditions. It is deep close to shore and these bays make a useful alternative anchorage in NW to N conditions if Te Puru becomes untenable.
The northern end of Annie Bay gives protection from the roll pushed into Guards Bay by NW to N winds. There are rocks 20 m out from the northern shoreline leading to Shag Rock. A combined club mooring is placed here. The bottom is mud and sand and is excellent holding. Strong N to NW winds can result in back eddies from the SW.
Kate Bay is slightly more sheltered the Annie Bay but is affected by the tidal streams through Allen Strait.