Message from Nintendo:
The Resort Course, a new nine-hole course in Wii Sports Club – Golf that was originally featured in Wii Sports Resort, will be permanently added to the game via an update that is available today.
Also, starting on March 21, Wii U owners can download and play the Wii Sports Club game for free (Golf, Tennis, and Bowling) until March 23 at 11:59 p.m.
Here's some footage of the new golf update:
Here's some footage of the new golf update: