1. Eucalyptus Ave, San Carlos Days open: December 2nd through December 25th Admission: Free Every year, the residents of Eucalyptus Ave in San Carlos come together to put up a month long display of festive cheer for Christmas. Weekdays are less crowded and it is easier to find parking. The Eucalyptus Ave will be one-way to accommodate holiday traffic. Take your time and enjoy this stunning display of lights as…