The paddle steamer Waimarie will be refloated on Saturday morning after an unsuccessful attempt to launch it on Friday.
Interested locals gathered on the Dublin St Bridge and surrounding banks around Kowhai Park as crews tried to lower the paddle steamer into the Whanganui River.
The mission started just before 10.30am, but after an hour or so and a couple of unsuccessful attempts, it was postponed.
Riverboat Centre manager Phil Pollero said they experienced issues with the slipway rails with prevented the cradle and the vessel from being able to reach the river.