"It's pretty fantastic what they have achieved," Brent Gowler told the Chronicle on Wednesday.
"In fact all the Whanganui rowers have been brilliant. We (wife Dianne) are just waiting for the girls to shuttle into Cambridge after flying back into New Zealand this morning. We'll catch up for a wee bit of a celebration."
The proud mum and dad are in regular contact with both daughters during international regattas, including this latest escapade in Switzerland.
"We talk two or three times a week and message daily and they are both loving it. Jackie actually raced in the same A Finals as Kerri in Poland and Switzerland finishing sixth in the latest race. She is reserve for the women's pair and the women's eight," Gowler senior said.
"They don't have much time to reflect because they'll be straight back into it to prepare for the World Champs in Florida."
The Gowlers are now preparing more room at home to display the rapidly increasing medal tally.
"Kerri in particular sends us medals and things. We have a special set of deer antlers that we hang medals from and we have a trophy cabinet - we're very proud."