So, let's talk about noun phrases that might be used to express the concept of a walk around something.
> xx
>
> xx
>
> xx
>
> xx
The first two are most commonly used in terms of a predesigned course or trail that you might take around something. All these terms can be used with standard verbs such as or . However, there is a special verb that can be used to indicate completion of a walk {}, specifically for the first two examples. It doesn't seem to be used in the case of the latter two presumably because you already said . In fact, you can just say
> xx
to say you finished walking around something.
Here are some other ways you can say it, especially for a larger thing such as Lake Biwa or Japan (or I suppose if you want to make it seem like a long trip), you might say
> xx()()
>
> xx ( or )
For going around the world (obviously you can't do it all by walking), it seems the more common way to say you completed it would be :
>