Don Stevenson, Auburn’s ultra-marathon man of sole, plans to walk locally 20 to 30 miles a day throughout May for the Pulmonary Hypertension Association.

The 81-year-old Pacin’ Parson hopes to average at least 120 miles each week or 500 miles by May 31.

May 5 is World Pulmonary Hypertension Day.

Stevenson hosts a kickoff to the walk at 9 a.m. Friday, May 5 in the lunch room of Haggen’s supermarket in Lakeland Hills, 1406 Lake Tapps Parkway E, Auburn.

The May-long walk is Stevenson’s latest in bringing awareness and funds for the prevention and cure of pulmonary arterial hypertension, an incurable, debilitating disease. He completed a pair of 1,000 miles walks for the PHA last year.

In 2015, after nearly four months, Stevenson finished a 3,000-mile, cross-country walk from Washington state to the Washington, D.C., area, raising nearly $10,000 in donations and pledges for PHA.

Stevenson, a U.S. Marine Corps veteran and retired pastor, teacher, truck driver and firefighter, has walked more than 50,000 miles to raise awareness and funds for many charities since 1998.

He has covered 7,600 miles for Alzheimer’s; 20,000 miles for Multiple Sclerosis; 13,000 miles for Huntington’s disease; 2,400 miles for the American Cancer Society; climbed Mount Rainier for the American Lung Association; walked 730 miles for Spina Bifida; 2,086 miles for blind and special needs kids.

“The most peaceful people on Earth are those who give their lives to help others,” Stevenson said. “The most miserable people on the planet are those who think only of themselves.”

To learn more about the walk, or to donate to his cause at O2breathe.org/FightPH16 and click on Stevenson’s name.