Sailing on Caribbean sea coast
I'm new here, and I'll start soon a big adventure onboard a small hobie cat through the Caribbean sea, coastal sailing, starting from Mexico.
I just discovered locus map and all its features, but I'm a bit lost.
Can you please help me? I need to know what should I do/download/install/buy to use marine charts in live mode on my smartphone (offline). I need it for safety reasons, because I'll sail over shallow and reef areas.
Also I'm planning to get a garmin handheld chart plotter so I can have 2 devices in case one is not working. I saw the open sea maps can be downloaded and used in that devices, right? What kind of maps should I download in that case so I can use them in both (garmin gps and smartphone with Locus Map)?
I'm always trying to find the cheapest solution, avoiding expensive suscriptions (like garmin / navionics does).
Thanks in advance!