Basic idea: have the app function the same way as google maps, but offline (mobile data connections are pretty useless at sea) and showing the depths and nearby dive locations.
Sofar so good. Now it comes down to getting the actual nautical charts. I managed to get my hands on a few Thai nautical charts, like this one from the similans, chart T307b:
307b.jpg 90.51K
4 downloadsDoes anyone know where I can get these maps? Preferably digital....





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