Holes Bay neap tides and at spring tides, and a double high water. Maximum monthly temperatures range from an average of in January to in August; minimums range from to . Ground temperatures on the mudflats can fall below freezing in winter. The prevailing winds are from the west or southwest, but sea breezes can also blow in from the south and southeast. Holes Bay is home to numerous wetland bird species including avocet, black-tailed godwit, curlew, kingfisher, little egret, oystercatcher, red-breasted merganser, redshank, spoonbill, teal and widgeon. The bay is used for fishing. Species that occur here include bass, mullet, flounder,
The Sea and Little Fishes Granny is the sea, and the other witches are the fishes (at one point Nanny says that calling Granny 'full of pride' is like calling the sea 'full of water'; water is what the sea "is"). It is based on the "ancient phrase" "The big sea does not care which way the little fishes swim", which Pratchett made up at some point before the story, and finally used in "Night Watch". The witches appear as supporting characters in the Tiffany Aching stories starting with "The Wee Free Men". "A Hat Full of Sky" further develops the Witch Trials and the