Returning to the city of her birth for the first time since claiming four Olympic medals at her maiden Games, the 21-year-old said she was flattered by the reception.

"It's great to be able to do all this," she said.

"I feel like they're all things I've been wanting to do for a while and haven't had the chance. Yes it's a busy week, but I'm really happy to do it."

Titmus was lined up to talk at both her old schools - Sacred Heart and St Patrick's College - and host a clinic for aspiring swimmers at Launceston Aquatic Centre before receiving a key to the city and having LAC's 50-metre competition pool renamed in her honour.

"It's all very surreal for me," said the former Riverside and Launceston Aquatic member, who relocated to Brisbane in 2015.

"The keys to the city is going to be big, but having the pool named after you is the one that's really crazy. I think it's such an honour and I'm so glad I could help put Tassie a bit more on the map.

"Yeah I'm a Queenslander now but I'll always be a born and bred Tasmanian and I love coming back here.

"I've always wanted to go back to my old schools. I was at Sacred Heart from the age of four and have such good memories so seeing everyone there was so good.

"And I was really looking forward to the clinic, just to be on poolside rather than in the water. I wanted it to be more than just them seeing me, I wanted to try and make an impact.

"I remember when I was much younger and people came down for clinics. I hope I can do a clinic where little kids really remember it like I remember mine."

Titmus competed in four events across seven days in Tokyo, winning two gold, a silver and bronze medals and becoming Tasmania's first individual Olympic champion but said the magnitude of her achievements was still hitting her.

"Coming back here, going to places like Sacred Heart and seeing the impact that I've had on people, that really makes it sink in."