>Oh yea, and you are right
>I do not know of any tidal lakes or rivers.
>
>That is, don't know of them *now.* But who knows... :)
No equivalent of the Severn Bore in Glorantha?
For reference: rising tide in the river's estuary forces the river to run backwards twice a day. During the highest spring tides, this can result in a 2m (6'6") wave travelling upstream at 16 kph (10 mph).
With other rivers, the effect is less dramatic. But the Thames is also a tidal river all the way up through London.
As to how to explain this in a mythic context: maybe the sea gods are simply trying to re-invade the land, but always get beaten back... or perhaps one particular sea god is trying to rejoin his earth goddess lover?
Stephen
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