Cycling training.

I've decided to do a fund raiser for lung cancer research. It's called the BC Lung Association Bicycle Trek for Life & Breath.
It's a 200km bike ride from White Rock, British Columbia to Cultus Lake B.C. and back.. Sooooooooo excited!! I am looking to talk to cyclers that have trained for long distances who could share any tips you have if you've done a long ride like that.

I ride a hybrid bike (Felt qx65)

Also, here's the link to my donation page :):flowerforyou:

http://bicycletrek2013.kintera.org/faf/donorReg/donorPledge.asp?ievent=1045609&lis=1&kntae1045609=6D1466CDD5A24322A1491D4C0AF98519&supId=386560185

Thanks in advance,

Jae