An 81-year-old man has taken up a tough mission for his age to be able to help an aid organization for homeless people. Bill Anderson of Yuma will be bicycling around Arizona's perimeter; a 2,000-mile trek that he expects will take two weeks to cover.

According to Anderson his biking tour is dedicated to raise awareness about hunger and homelessness, while collecting donations from volunteers on the way.

"It's all about Crossroads Mission," he told the Yuma Sun. Crossroads Mission is an aid organization which provides shelter, meals, showers and clothing to the homeless.

Anderson began his cycling tour on Tuesday from Yuma and by Saturday he had planned to arrive in Page.

Anderson had planned his next stop-over at Kayenta from where he would roll down to Sanders, Eagar, Safford, following the Mexican border at Douglas, and then via Tucson, Ajo, Gila Bend, back home to Yuma.

However, the riding adventure is not new to Anderson who rode from the Mexican border to the Canadian line last year and made two trips: one from Canada to Mexico, and the second from San Diego to Jacksonville Beach in Fla., in 2004.