十月去美国旅行二十天~~大概行程计划如下~~请大家帮忙看看如何？

十月去美国旅行二十天~~大概行程计划如下~~请大家帮忙看看如何？


10/02 arrive NYC
10/03-10/04 NYC
10/05 NYC to State College（visit my aunt)
10/06 State College to Niagara Falls
10/07 Come back to State College
10/08 State College to DC
10/09 DC one day trip
10/10 Fly To Las Vegas
10/11-10/12 Grand Canyon 2 days trip with local travel agency
10/13 From LV to San Francisco(by flight)
10/14 Yosemite one day trip with Local travel agency
10/15-10/16 San Francisco--Los Angeles(still not sure drive by ourselves or go with travel agency,maybe we won't drive too long per day,will stay at Monterery or Santa Brabara for one night)
10/17 Universal Studios Hollywood
10/18 Disney Land
10/19 Los Angeles one day trip&shopping
10/20 Back to China