Ah well, that went faster than expected. Oare Creek doesn't appear, it joins Faversham Creek further south. John F's contribution is also correct, I left it there on purpose. I'm guessing that you are aware of the history of Harty Ferry, if not there is a short summary here:
https://en.wikipedia.org/wiki/Harty.
The "XXXX sands" dead centre are actually the "Horse Sands". They dry at low water (
26 means a drying height of 2.6m) but are covered at high water, a nice trap for the unwary. A year or two back I set off with my wife and one son in our 2.4m dinghy from Hart Ferry. As we crossed the sands a head popped up to look at us, so I cut the power and we started seal watching. A few minutes later up popped a slightly smaller head and both swam around about 50' away. Then a smaller head popped as well and came within 25' of the boat, playing and looking at us with curiosity. After at least a quarter of an hour we gently moved off. A couple of hours later we came back and by now the tide was ebbing. there on the sands were the three seals sunning themselves: Dad, Mum and pup.