Name: Tidal Graph
Rating: 2.8 (18 reviews)
Author: dirk.wisse

This app provides you with a tidal graph at your GPS position. If you want a stable app for high and low tides you can also try "High Tides" https://apps.garmin.com/en-US/apps/350e7cbf-3932-4893-9642-df13119495e9

The data is retrieved from World Tides (https://www.worldtides.info). Before you can use the app you need to register as a developer (at https://www.worldtides.info/register) and set your API key in the High Tides settings in Garmin Connect Mobile or Garmin Express.

Instructions for setting your World Tides API key: 
- Open "Garmin Connect Mobile" on your mobile device 
- Click on "More" (on iPhone 3 dots in lower right corner) which opens the full menu 
- Choose "Garmin Devices" and select your watch 
- Select "Connect IQ Apps" 
- Now go to "Widgets" 
- If installed you should be able to see and select the "Tidal Graph" widget 
- Finally you select "Settings" where you can enter your World Tides API key 

How to use it:
- Use the "menu" button (or hold the "up" button) to show the menu.
- Get tidal data for the current GPS postion with the "Tides at GPS" menu.
- Get new tidal data for the stored GPS position with the "Refresh Tides" menu.
- Clear all stored data (except for the API key) with the "Clear" menu. 