NOTE: Ensure course points are enabled by selecting 
.
Select
.Select Edit.
Select Add Course Point in the banner above the map.
Select on the map where you would like the course point.
Select the point type and name.
Select Save Point.
Select your product to confirm this information applies to you
Using Course Points on a Garmin Fitness Device
Many Garmin devices support the ability of adding courses via Garmin Connect™ applications. Refer to your device owner's manual to determine if your Edge® cycling computer or Garmin® watch has this feature.
What Are Course Points?
Course points are markers on a course created in Garmin Connect to signal important locations. For example a support station during an event, or dangerous intersection. When enabled on a compatible device, they will show on the course just like you would be notified for a turn.
Categories for course points include:
General
Aid Station
Cycling
Personal
Landmarks
Hazard
How Do I Add Course Points?
During the Creation of a Course in Garmin Connect:
During the Creation of a Course in Garmin Connect:
Select
.Select Add a Course Point.
Select course point type
Select Next.
Move the screen to drop the point.
Select Next.
Select the point on the course to edit the course point name.
Select Place Point.
Select Save.
The images above were taken on an iPhone; the process and options are the same but may look slightly different on an Android phone.
What Are The Maximum Number of Course Points Supported by a Fitness Device?
There is a limit to the number of course points that can be added per individual course. This limit is dependent on your device, for example it is 200 course points for Edge cycling computers and 50 for Forerunner watches. Course point limits include every turn in a course in addition to any manually created points you have added to a course.
Is There a Maximum Distance Limit for a Course?
If you device isn't performing well while calculating the route for a course, or while following a course, consider splitting it into smaller courses for optimal performance while routing. Reducing the number of course points may also help performance with longer courses.