Help me get to Cambridge/London

I am a 16 year old high school student trying to make a great opportunity I have been given, into a reality. The entire Cambridge program at my high school is going to have the opportunity to go to London and Cambridge June 28 2014. This will be the ultimate Cambridge experience. 
These are the following places/things we will be going to/doing:
-Arrive in London
-Walking tour of London
-Dickensian walking tour
-Brasenose College
-Shakespeare's Birthplace
-Cotswold Wildlife Park and Workshop
-Cambridge University, Kings College
-Punting, Cambridge 
-Fitzwilliam Museum 
-Sedgwick Museum 
-Cambridge University Botanic Garden 
-Norfolk Lavender Fields
-Norwich castle Museum and Art Gallery
-London Eye 


Unfortunately, because this is such a big trip it comes with a big cost. Despite how expensive it is I am determined to reach my goal through various fundraising efforts. 


Please help make this dream into a reality! 


If you donate $25 dollars you will receive a post card from London or Cambridge.
If you donate $100 dollars you will receive some type of souvenir


Thank you in advance for the support. 
Remember whether you can give $1, $10, or $100 it all counts and every penny helps.