We stayed at The Park, just as you are coming into Mackay from the south it is on your right, can't miss the signs, we stayed there for 7 months and had no problems, very well run...........
Boulder creek is VERY popular. Backpackers have found it but I will call in maybe Wednesday next week. heaps of room at lake Elphinstone. Just a shame about the weather.
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'Once you are infected with the travel bug you have it for the rest of your life - there is NO cure'