Please book your accommodation as soon as possible since the total number of rooms  is limited.
There are many hotels and B&B in Split, you may find information about them using Google maps link bellow.

There is also list of recommanded hotels in the city of Split.

Map of Split (Hotels)

What is also  recommend as a favourable accommodation are private apartments at web
pages:

http://www.splitapartments.net/split-search-accommodation.html

http://www.holidaysinsplit.com

http://www.split-apartment.com

or just google for apartments in Split.

What is also  recommend as a favourable accommodation are private apartments at web
pages, 
http://www.splitapartments.net/split-search-accommodation.html,http://www.holidaysinsplit.com/,
http://www.split-apartment.com/ or just google for apartments in Split.