Ferry to Ulleung-gun from Mukho!

It seems that most people go to Ulleung-gun from Pohang.

However, there also seems to be a ferry from Mukho near Donghai.

Has anyone taken this?

And what does this mean?
Please be cautious about different location of Mukho Harbor and Mukho Passenger Terminal.

The general area referred to as Port of Mukho is about 1 kilometer North of the ferry terminal.
Technically, the ferry terminal is located at the southern tip of the harbor, but the aforementioned general area of the port and the ferry terminal are separated by a restricted area. It's not like you can walk or drive along the beach to go between the two.
When you take a taxi, for example, you have to be specific whether you want to go to the Port or the Ferry Terminal.

I've taken the ferry from Mukho to Ulleungdo in Nov 2012...

You have to make your way to Mukho Passenger Terminal. If you are taking a taxi, let the driver see "묵호여객터미널" (Mukho Yeo-gaek Terminal)