A great annual Bicycle Queensland event is the Brisbane to Gold Coast ride.
Not a race, and not for 'experts', this event allows 'ordinary' riders to complete 100 kms in a day, with smoko and lunch provided, and a 'free' T shirt at the end.
Get yourself down to Southbank, with a bike, and then ride the 100 kms to Southport and have a party at that end.
Then, put your bike on a truck, put yourself on a bus, and smooch your way back to Southbank and get yourself home again, tired, but happy.
This day is completed by rank beginners, and by lycra clad fiends who pass you on their way home before you've even reached the 40 kms mark.
It's a great day, well worth a go.
See the FAQs here:http://www.bq.org.au/b2gc100/?page_id=4
See the home page here: http://www.bq.org.au/b2gc100/