Nowacki is hoping he will be selected for the World Junior Championships in Romania in August.
It would be his biggest global event since he won three medals at the 2023 Commonwealth Youth Games.
“I think it’d be the biggest competition that I’ve been to,” he told BBC Sport.
“The Commonwealth Youth Games were pretty big, that was very much international – I know there’s no America but, Australia, Canada and all the big nations from around the world were there, and the fact that it was on the other side of the planet as well I found that one quite big as well.”
Nowacki has returned to Jersey for a short while before he links up with his team-mates for the Island Games in Orkney.
Nowacki will swim in all the breaststroke events, as well as the 100m butterfly, 200m individual medley and some relays as he looks to add more medals to his collection.
“I missed 2023 in Guernsey so I’m super happy to spend some time with my friends here on the island that I haven’t seen in a while due to boarding school and hopefully I’ll swim fast again,” he says of the 2025 Island Games.
“I’m just looking forward to the vibes and the atmosphere.
“It’s been a while since I’ve competed for Jersey, so I’m just really looking forward to spending some time with my friends and all swimming quick at the pool, not really accolades and golds at this moment in time.”
