Oh, this word order...
Is "ma hea" synonymous with "i hea"?
I think it's right. Hawaiian word order is VSO which sounds ridiculous to English speakers.
Aia (the verb "there is"), then 'o Kaleo (the subject), and finally ma hea (the object, where). This follows the order so it is right.
What does VSO mean?
Verb subject object. It's the order that those elements come in the sentence. Celtic languages are also VSO, while English is SVO and Japanese is SOV, for instance.
Seems like it should be "Aia ma hea 'o Kaleo?"