Hi - what am I doing wrong with the Garmin Tide app? I've used the following steps:
1. calibrate alititude
2. mark/save location using GPS on the watch
3. open Tide app (sometimes it engages GPS too, sometimes not, always the same "result"):
Low and high tides are off by hours AND minutes, so it's not a time zone thing either, they are completely different from one another.
Data is off from tide data that every website shows: