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How do high tides affect the Indus River delta?

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Physical map showing the Indus River basin and its drainage network across parts of Pakistan, India, China, and Afghanistan. The map details river courses, tributaries, canals, dams, irrigated and marsh areas, sand regions, and elevation changes with shaded relief. International, disputed, and control boundaries are marked, and a small locator map in the corner shows the basin's position within South Asia. — Indus River The Indus River basin and its drainage network.

The coastal strip of the Indus River delta, extending approximately 5 to 20 miles (8 to 32 km) inland, is regularly flooded by high tides.1

Furthermore, when high tides and seasonal river floods coincide, the littoral zone of the delta is flooded for a distance of about 20 miles (30 km) inland. Unlike some other major river systems, the Indus delta is characterized as a wild waste.2