Thirty-six of the 45 nurses to graduate from the school in 1986 attended the reunion.
Reunion co-organiser Marina Anderson (centre front, left) said former classmates had travelled from as far afield as the United States for the reunion.
About 80% of the class were still nurses, she said.
Co-organiser Ena McGinn (centre front, right) said she believed the class retained a "strong bond" because they were the guinea pigs for the nursing school.
Many of the day-to-day aspects of nursing had not changed over 30 years, however nurses now had to do "more" with "less money", she said.
The reunion included a tour around the school of nursing and an afternoon to share nursing school memories.