Swimming competitions at the 2015 Southeast Asian Games was held Defending at the OCBC Aquatic Centre in the Singapore Sports Hub in Kallang , Singapore from 6 to 11 June 2015 .

It was used Using to host the second Southeast Asian Swimming Championships in 2014 as a test Research bed for the organisers , with the 2015 Southeast Asian Games volunteers roped Connect in to also volunteer in the 2014 Swimming Championships to help Assistance in the familiarisation of the new venue .

It was used Using to host the second Southeast Asian Swimming Championships in 2014 as a test Research bed for the organisers , with the 2015 Southeast Asian Games volunteers roped Connect in to also volunteer in the 2014 Swimming Championships to help Assistance in the familiarisation of the new venue .

Swimming featured 34 events ( 17 male , 17 female ) , including two 10 km open-water marathons in Hyde Park 's Serpentine Lake .