Anonymous wrote:
My deal little Garmin 76 that was given to me in 2001 and works perfectly, will now be obsolete and something else to go into landfill. And every time I turned it one, it reminded me of my old friend, now long deceased, who gave it to me. There are times that the 21st century fills me with despair. I still have my sextant, of course, but liked my GPS to see how miles I'd sailed. I also found it useful for 'will I get there before sunset?' calculations. I am disinclined to shell out for another one.
Don't give up on it until you've asked https://support.garmin.com/en-NZ/ about epoch rollover.
Phones and GPS. I must have this wrong, but on occasion I've used the GPS on my phone, via Maps, and when it's lost its phone signal, it also loses its map. Could one trust it as an alternative to GPS offshore?
You need a marine chart app. Try going to Google Play and looking for Aqua Map, free to download the app, then pay for the charts. On my iPad (in iOS) I could get an everlasting set of LINZ charts in this app for £9.99 or a 1 year subscription for £4.49 so I guess it's the same in Android.