California man with cerebral palsy climbs Yosemite's El Capitan

FRESNO, Calif.

Steve Wampler took off for the week-long trip on Sunday and has since covered about 750 feet.

The 42-year-old is making the trek along with a group of other climbers ... who are helping guide him using a system of ropes to haul himself up.

Wampler, who has spent most of his life in a wheelchair, trained for the hike for more than a year, using weights and practicing in his harness.

He estimates it will take about 20-thousand pulls to reach the top, and expects to be at the top by Friday.

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