200. Los Trancos Trail to Fern Loop Trail, Foothills Nature Preserve, Palo Alto, California https://youtu.be/KXimerdfwJs?si=yyG8_IPBy4nv97_e Los Trancos Trail to Fern Loop Trail, Foothills Nature Preserve, Palo Alto, California 1. Dr. Sam Lee/여행스케치 2023.10.22