Here are just a few suggestions for other places of interest:
Australian Canoeing
Barrington River Water Level
Gloucester Visitor Information Centre
Great Lakes Surf School
Bliss-Stick Kayaks
KONA Bicycles
Mountain Biking Association
Some accommodation providers in the area:
Twistops Retreat
Never Never Lodge
Mansfield Barrington Country Holiday Experience
Poley's Place
Barrington Riverside Country Retreat
Arrowee House