Laina Harris has been looking for alternatives to outdoor exercise as fall weather conditions have made hiking and walking more difficult.

Laina Harris mirrors the moves of the instructor during a Bellyfit class last week in east Vancouver. For years, Harris was too embarrassed to participate in group fitness classes, but now she's filling her schedule with exercise classes.

Laina Harris stretches at the end of her first Bellyfit class last week in east Vancouver.

Rondie White takes a picture of Laina Harris after making it to the top of the Multnomah Falls trail Aug. 25. White has joined Harris on countless hikes during the last several months as Harris works to lose 270 pounds. So far, she's dropped 100 pounds.

Laina Harris, right, and her friend Rondie White pass the fourth switchback marker along the Multnomah Falls trail during a hike to the top on Aug. 25. In May, Harris took nearly two hours to complete the hike. This time it only took her 58 minutes.

Laina Harris stops to take a photograph along the Multnomah Falls trail while hiking with friends on Aug. 25. Harris did the hike to celebrate losing 100 pounds and was joined by her friends Michelle Clark, right, a Camas personal trainer, Tiffaney Forney, background, and her 9-year-old daughter, Autumn Forney.

Laina Harris, right, and her friend Rondie White take photos at the top of the Multnomah Falls trail Aug. 25. Harris was joined by White and other friends as she hiked the trail in celebration of losing 100 pounds.

Laina Harris makes her way up a rough trail during a hike at Lacamas Lake recently. Harris hikes at the lake and on trails in the Gorge five to six days a week.

Laina Harris, left, walks with her friend Rondie White at Lacamas Lake in Camas. Harris, who has lost 85 pounds, goes on hikes with White a few times a week. "We keep each other going because we told each other we're not carrying each other out of here," White said.

"I'm not a nature girl, but I'm really enjoying it. I think I'm becoming a nature girl," says Laina Harris, who has lost 85 pounds and goes on hikes a few times a week.

Laina Harris shares a moment with her 10-year-old son, Cameron, in the kitchen of the family's Camas home. Harris wants to lose enough weight to have a healthy body mass index score and be able to play soccer with her son.

Laina Harris holds a photograph of her family on a vacation to Disneyland. Harris has few photos of herself as she often tries to avoid the camera due to her weight.