Colombo Academy of Hospitality Management The Colombo Academy of Hospitality Management (CAHM), Sri Lanka’s largest hotel school, is a joint venture between William Angliss Institute (WAI), Australia. Based in the SLIIT campus in Malabe, we are a dedicated centre for Hospitality, Tourism, Foods and Events. William Angliss has a proud history of over 75 years, and in our Melbourne campus we annually have over 21,500 local clients and students, and 1,300 international students from over 45 countries with more than 100,000 graduates worldwide.