The golf course mapping, CourseView, has over 30,000 golf courses worldwide1 and is still growing. Garmin releases a new CourseView update about once a quarter to make course revisions and add new courses.
In order to obtain this update for the Approach:
Following these instructions will ensure the latest firmware and course are installed.
1 Course capacity and coverage may differ for each device; to view course capacity and coverage, visit the product specs page for the Approach series device in question.
Approach series product page: https://buy.garmin.com/shop/shop.do?cID=261
Garmin Express: http://software.garmin.com/express.html