Corte Madera and Ormondale schools in Portola Valley will be among the San Mateo County schools celebrating International Walk to School Day on Wednesday, Oct. 3.

In Portola Valley, coordinator Kari Rust will present three days of bike and pedestrian education to prepare students, according to the San Mateo County Office of Education.

Approximately 47,000 students in San Mateo County may walk to school alongside parents, teachers, and community leaders on Oct. 3, according to Karen Williams of the county Office of Education. National Bike to School Day will be held May 8, 2013.

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