1. 當地有冇lcoal tour to reef
--> there is a one day tour to lady Elliot Island, which is part of the Great barrier reef.......however there is a great distance b/w Gold Coast and the lady Elliot Island so the only way to access to this island is by flight
you can check the price and details etc from :
http://www.tctm.com.au/2_activities/activities/great_barrier_reef.htm
--> they are the local tour agency specking english/cantonese/mandarin
2 if yes, 多5多, 會5會日日出發呢, 唐人團or 西人好d
--> as i mentioned above.....that is the only tour which depart from GC to the great barrier reef...................and.it departed daily
3. where to get information about that
http://www.tctm.com.au/2_activities/activities/great_barrier_reef.htm
http://www.tourstogo.com.au/
4. any suggestions if i get the plan like this
the suggestion is to stay longer.........because if you can stay longer then u go also vist great barrier reef via whitsunday which then u can also visit white heave beach, one of the most beautiful in the world
http://www.whitsundaytourism.com/
http://www.queenslandholidays.com.au/destinations/whitsundays/
although u can visit great barrier reef via many places, like cairns , havey bay, Mackay etc....i stongly recommend you to chooose whitsunday as the gateway to great barrier reef........as it less crowded and more beautiful
參考: living on the GC and been travling to many places in Australia