The Caribbean Examinations Council has redone their web site and syllabii can now be found online - after a bit of digging. Since my days of teaching CXC Physics ready access to the most recent syllabus has always been less than easy for teachers and students so having them online like other examining authorities is much to their credit - well done CXC!
The Physics syllabus, effective May 2015, can be found here along with other subjects.
Also of note are the study guides which look really useful, available through publisher Oxford University Press. The Physics study guide is here.