HOLY TRINITY HIGH SCHOOL (CATHOLIC SEC.) Search for: Advanced Search Browse Schools Search Schools HOLY TRINITY HIGH SCHOOL (CATHOLIC SEC.) Contact Information Contact The School Phone: 0123738311 More Information HOLY TRINITY HIGH SCHOOL (CATHOLIC SEC.), PRIVATE, SECONDARY SCHOOL, ORDINARY SCHOOL, Latitude, -25.76239771, Longitude, 28.0864732. BOARDING SCHOOL= FALSE This Ad has been viewed 6 times. Schools contact details.