| Oops. How to cross the river now? We're in the tidal floodplains, which means that the tides control the flow of the waterways. Every 6 hours, the water level moves about 50-90 cm (I'm guessing), and the direction of the flow changes. So in the morning, the plants float upstream, and in the afternoon, they flow downstream... As a boat could historically move about 10 km/hr, and the flow kept in one direction for 6 hours, major cities are almost invariably 60 km apart from each other on waterways (10 km/hr x 6 hrs = 60 km). Or something like that. And our boat sank. |
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