8. This paragraph applies within the territorial sea or a designated area to and in relation to—
(a)underground coal gasification and any activity in connection with it;
(b)any activity which is immediately preparatory to any activity in sub-paragraph (a); and
(c)any fixed or floating structure which is, or is to be, or has been, used in connection with the carrying on of activities within sub-paragraphs (a) and (b).