Great white water rafting. There are a few companies running tours. They generally do pickup from either Mission Beach or Cairns. Mission Beach is much closer.
Wildside Adventures
Rafting company.
RnR White Water Rafting
Rafting company.
Raging Thunder
Rafting company.
Alligators Nest
Great swimming spot and BBQ area.
Mount Tyson
About 2 hours up this steep track to the top of Mt Tyson. Beautiful walk and the view from the top is worth it.