[George Prevost]

I agree that an inReach is a good solution.  If you’re going to buy one, I just saw an article saying that there is a new model that allows you to send voice messages and photos, if that’s something you think you might want to do.  I don’t see it on the Garmin website yet, though.  Another option is a Garmin Montana 700i GPS, which is what I have.  It’s an excellent, very waterproof GPS with a large, clear touchscreen and also includes inReach capability.