Open Garmin Connect app.
Select More (bottom right).
Select Activities.
Select All Activities.
Select the activity you want to change.
Select
(top right).Select Edit Activity.
Under Activity Settings select Privacy.
Select who can view this activity.
Select your product to confirm this information applies to you
Privacy Settings for Individual Activities
You can change the privacy setting of each individual activity after it has been uploaded to your Garmin Connect™ account. Select your preferred platform for instructions.
From a web browser, sign into your Garmin Connect account.
Select Activities.
Select All Activities.
Select the activity you'd like to edit.
Select the padlock from the row of icons in the upper right corner.
Select the desired privacy level for that activity.
It will save automatically.