Each year, Dunman receives a stream of visitors who wish to find out more about certain aspects of school organization and innovation in Singapore Schools. 

On Jan 31 2008, Dunman was happy to welcome 4 Professors and 36 Graduates of Masters program in Education Administration from Thailand.

As part of the Vietnam-Belgium Exchange Programme in collaboration with the National Institute of Education, Singapore, Dunman welcomed 10 Principals from Vietnam on attachment to the school from 25 - 28 March 2008.

For the second year in 2007, our twinning partners from Zhuo Dao Quan Secondary in Wuhan, China who were such perfect hosts to our students who visited in 2005, 2006 and 2007 visited us once again in July for a week putting up an exciting concert for us.  Dunman also welcomed on a one week attachment, 10 educators from China in 2006.

On 6 Feb 2007, we were pleased to welcome a group of head teachers from South Gloucestershire in the UK on a Research Visit to Singapore looking particularly into the area of PE and Information Communication Technologies.

Dunman was pleased to receive 3 groups of visitors from Thailand in 2007. On 23 March a group of teachers from Wattanasatit  Pre- School in Bangkok visited Dunman Secondary School.   An 18 member delegation from the Office of Basic Education Commission as part of the Thai Lab Schools Project visited our school on 26 Sept 2007.

Dunman also received school teachers and staff from the Institute for the Promotion of Teaching Science and Technology in Petchaburi, Thailand on 10 Sept 2007.

On 27 Feb 2007, Dunman hosted two visitors from the Department of Counselling at the University of Buffalo in the United States.  Once again Dunman hosted teachers from Columbia University on an attachment from 17 to 19 July.  We welcomed Katherine Callaghan and Nancy Lee in 2007 and 3 others in 2006.

In 2006 and 2007,  Dunman has played host to educators in Singapore for the International Leaders in Education Programme run by the National Institute of Education.  In 2007, Dunman hosted 14 visitors from countries such as Cambodia, Vietnam, China, Philippines and Brunei on 11 Sept 07. In 2006, Dunman hosted 44 participants from all over the world.

On 27 August 2007, Dunman was pleased to welcome 17 guests (13 students, 2 teachers and 2 Rotarians)  from Japan as part of the Youth Exchange Programme with the Rotary Club of Marina City. Interactors form Dunman Secondary School prepared an interesting cultural programme for our visitors.

On 4 July 2007, Dunman was happy to welcome a group of 30 educators from the Ministry of National Education from Pasuruan District, Indonesia. On