if you are looking to board your dog in hk for 2 months, there are a lot of options open to you. there are some excellent kennels, some nice (and very expensive) dog hotels and other places (like us) that do home boarding. we have dogs come and live in our home with us and the other dogs in our care. they get to play and have fun, get regular exercise and be socialised, with both humans and other dogs.
so, don't let the idea of "kenneling" your dog put you off either.
as for gold coast.... sorry, i don't know much about the area as we currently live in sai kung.