可以上艇。注意你这种情况须由学校的留学生顾问在I-20表后签字。即依据下面规定：

Persons wishing to travel to The Bahamas should possess a valid US multiple entry visa, with the exemption of the following:

• F1 visa holders- students may travel to The Bahamas on an expired F1 visa as long as the Form I-20 is valid. Please note that the authoring officer from the institution attended must sign the back portion of the form. The form is valid for 1 year from the date of the signature.
  
  相关链接：http://www.un.int/bahamas/foreign_nationals_in_transit.htm

所有跟帖： 

• 太感谢了！请教一下表后签字？ -老云- ♀ (0 bytes) () 12/04/2013 postreply 20:37:50

• 可以上艇，下艇回来美国入关有问题吗？ -老云- ♀ (0 bytes) () 12/05/2013 postreply 07:39:15

• 按移民法相关管规定，持失效的F-1签证返回美国的条件如下： ---1234567-- ♂ (1709 bytes) () 12/05/2013 postreply 09:35:31

• 太感谢你了！happy holidays！！！ -老云- ♀ (0 bytes) () 12/05/2013 postreply 12:18:35