Mt Tambourine rds

Hi I'm from overseas, thinking of taking kids up to Mt Tambourine or Springbrook tomorrow. Was mainly looking at Tamb. As we have an elderly person with us who can't Bushwalk, but I've heard the roads are sketchy. I'm a decent driver but I don't want to be driving on half washed away roads in a foreign country if I can avoid it. Are the roads really that bad? I can't find any info to confirm or disprove what I got told.

Update: I think we'll go to Sth Stradbroke instead. Just want an easy day trip