The $250,000 project aims to assist in education and interpretation of the era when the giant reptiles ruled the land.

The swamp was officially opened January 6, where 12 groups of ferociously lifelike dinosaurs from the past 250 million years were unveiled.

Tasmania Zoo owner Dick Warren said the site had seen a 120 per cent increase in visits since last year.

"We've had nearly half of Hobart up here," Mr Warren said.

"It went into the Hobart paper and news but they didn't say where it was - everyone's had to visit the website to find it."

The towering terrors have certainly left an impression with their visitors.

"People have been saying its unbelievable - everyone's been wrapped up in it, they all leave talking about the swamp," Mr Warren said.

He said the move to include the feature was spurred on by the wealth of knowledge children had on the prehistoric beasts.

"It doesn't matter what kids you talk to, they can all tell you a little bit about a dinosaur - that was the reason we ran with the idea," he said.

Plans to extend the spectacle are also in the future for the zoo.