President of PNG Swimming Inc, Liz Wells said that four are: Ryan Pini, Samuel Seghers, Ryan Maskelyne, and Barbara Vali-Skelton.
She said training for all swimmers was going well with all four swimmers training six days a week with eight sessions in the pool and three sessions on land.
Wells added the aim was to qualify under Universality placing to get to Rio.
She said for super fish Ryan Pini, he has qualified with a B timing for Rio but is aiming to better this.
“Lead up competitions for Ryan, Sam and Barbara will include competing in the New South Wales State Championships next month.
“Other major competitions before Rio include the Australian Championships in Adelaide in April, the PNG Nationals on the same month and the Oceania Championships in Fiji in June,”
“All four are looking really good and we are very confident in getting good results,” said Wells.