Yes, you are correct, and I understand the meaning of the sentence in Greek. However, in English, often someone would say "there is/are..." in the context pointing something out to someone and the "over there" is implied. If we are at the zoo and we walk up to the elephant enclosure, then I could say to you "Ah, there are some elephants." That is how I interpreted the sentence and I'm not sure it is entirely wrong to translate it as such. Thanks.