The best and easy to to unblock your favorite sites in these places is to use a proxy site.
Unblock Sites provides you with daily added fresh unblocked proxy sites which you can use for unblocking your favorite sites.
Use of a proxy site is very easy, simply click on a proxy site from the list given below and wait for few sec for it open. Once it's opened find the browse form somewhere in the middle of the page, type your favorite site url and hit enter or click on button.