However, to give a reasonable approximation based on general reputation and common knowledge:
Mona (Jamaica):
1. Medicine: UWI Mona is renowned for its medical school.
2. Management Studies: The Mona School of Business and Management offers a wide array of highly regarded business and management programs.
St. Augustine (Trinidad and Tobago):
1. Petroleum Engineering: Given Trinidad and Tobago's oil and gas industry, this is a significant program at St. Augustine.
2. Chemical Engineering: Another strong engineering program aligning with the country's industrial focus.
Cave Hill (Barbados):
1. Law: The Cave Hill campus has a respected Faculty of Law.
2. Tourism Management: Given Barbados' tourism-heavy economy, this is a prominent field of study.
Important Note: This is a generalized answer. Each campus offers a diverse range of undergraduate and postgraduate programs. For the most up-to-date and complete course listings, you should consult the official UWI website for each campus individually.