Great question — answering as the UphillTech team:
I've done a bit of walking on intertidal areas in estuaries, which typically have soft mud with/without mangroves, sandy areas with/without banks of seashell debris and the occasional rocky promonitory, but not specifically the areas you are asking about. For these environments it is best to have a pair of sturdy footware that drains well and is also old enough that you don't mind them getting damaged and/or very dirty. The drainage helps keep the weight down on your feet and lets your feet dry a bit when not in the water, otherwise your feet end up wet all day and you run the risk of softening of the skin and resulting blisters etc. These sorts of areas often have sharp shells that can...
Full answer by bob1: https://outdoors.stackexchange.com/a/28725 (CC BY-SA 4.0).
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