This is probably too late for you but if you are still interested ....If you really want to experience the Gold Coast head towards Main Beach, Surfers Paradise (as close as you can get) I think there is a tourist park called Main Beach the next nearest one I know of is the 'treasure' one that has already been mentioned here though that is not within walking distance to the beach or main beach shopping strip but is in a central location & opposite Harbour Town DFO. Broadbeach is a really great place to stay - walk into Surfers Paradise, Pacific Fair shopping Centre with a fun play park for the kids. Take the Monorail from the casino opposite over to the beach and cafe style dining. All accessible to 'surfers paradise' by a pleasent stroll up the beach. Don't stay near the theme parks as there is nothing else around of interest - you would def need a car. There are plenty of buses to the parks from all over the Coast. You'll have a great time anyway & whilst hastings is sleepy it is beautiful and relaxing. Have a great Holiday.