It lies east of Coen in the Claremont Isles .
Hay Island is a 10 ha coral cay that is part of the Great Barrier Reef Marine Park west of Cape Melville , Queensland , Australia .
Hay Island lies east of Coen in the Claremont Isles .
Hay Island is a 10 ha coral cay that is part of the Great Barrier Reef Marine Park west of Cape Melville , Queensland , Australia .