I don't know the area too well, coz I'm fairly new here from Melbourne, but looking at Google maps, I've found a whole bunch of loops we could go on. Basically what we could do is start off at the Glass House Mountains Rd turnoff from the Bruce Hwy, drive towards Landsborough, then up through Bald Knob... From there, depending on how long the cruise is going to be, you can turn off at Maleny-Montville Rd then follow the loop back towards the coast, or go through Maleny, Witta, Curramore, Obi Obi and follow the road back to Nambour... There's heaps of options... I'll draw a map up too