NSW Police have confirmed the body of a woman believed to be missing bushwalker Lily Hooper has been found after an eight-day search in the NSW Southern Highlands.

Nearly 100 soldiers have joined the search for missing Sydney bushwalker Lily Hooper.

Lily Hooper was found on Thursday morning, more than a week after she went missing in dense bushland.

Lily Hooper had been missing in bush near Sydney for eight days.

Lily Hooper, 18, disappeared while hiking in Nattai National Park