Ardent Leisure visitor numbers improving

Visitors numbers to Ardent Leisure's theme parks are improving, but revenue from the venues in February was still down 35 per cent on the previous year.

Visitors are slowly returning to Ardent Leisure's theme parks but revenue for February was down 35%. (AAP)

Visitors are slowly returning to Ardent Leisure's theme parks after four people died on Dreamworld's Thunder River Rapids ride, but revenue is still down.

Ardent Leisure says the number of theme park visitors in February was down 33.6 per cent on a year earlier.

The February fall was an improvement on January, when visitor numbers were down 44 per cent, and on December, when they were 63.5 per cent lower.

In a trading update on Tuesday, Ardent Leisure said its theme park revenue in February of $4.4 million was 35 per cent lower than the previous February's $6.78 million.

But, it was an improvement on January and December which, respectively, suffered a 50.4 per cent and a 63 per cent fall from the prior corresponding periods.

Ardent Leisure said it will launch a new marketing campaign - featuring Guy Sebastian's song Pure Imagination, and the Yugambeh Youth Choir - as Dreamworld continues to return to normal trading.

Shares in Ardent Leisure were 4.0 cents, or 2.57 per cent, higher at $1.595 at 1058 AEDT.