Good point. Do you know of one? Let's have a look at how the OS deal
with it.
On 2019-07-11 22:52, Edward Catmur wrote:
> On Thu, Jul 11, 2019 at 9:19 PM Colin Smale <[email protected]> wrote:
>
>> * Where the coastline is essentially vertical (harbour walls, steep cliffs)
>> MHWS and MLWS can coincide in OS data (sharing nodes but not ways), but of
>> course low water can never be landward of high water.
>
> Is this necessarily the case? Couldn't an overhang result in a low water
> landward of high water? Consider e.g. a sea cave that is flooded at high tide.
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