"all year around" doesn't sound right to me (though it appears from Google search that some people do use it). "all year long" may not be quite the right fit for what you mean. The others are OK.
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teacherJapanYou can go there and enjoyYou can go there and enjoy beautiful scenery ( ? ).abeautiful scenery ( ? ).
teacherJapanYou can go there and enjoyAll except (2) are fine.abeautiful scenery ( ? ). ... Are they all acceptable?