Lining up behind buckets of bright paint, each had a generous amount applied to their hand by artist Judith-Rose Thomas before pressing it against a portion of a mural, set to line the south-east side of the soon-to-be complete Riverbend Park.

"These children are just loving this, you can see it on their faces," laughed Thomas who, along with fellow Tasmanian Aboriginal artist Nannette Shaw, has been working to bring the once-bland concrete wall to life.

"Without the children there's no point in doing it, it is a children's park," she added.

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Thomas said the mural's title, loowena, also reflects this - a word for child originating from Mannalargenna country on the state's East-Coast.

Covering a large section at the south-east of the site, the vibrant mural features a forested landscape - including a hidden thylacine - along with a representation of the North and South Esk, and Tamar rivers.

The mural also features images of animals, Indigenous rock carvings from across the state, and - now - more than a dozen new hand prints.

Along with the mural, the park will feature a fenced toddler area, car park, events lawn, toilets, dedicated all-abilities play equipment, barbecue facilities, and some play equipment for the more adventurous.

The project was estimated to cost about $9 million, but now costs are expected to be about $11.5 million and is expected to be available by late autumn or winter.

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