A pop-up bar called the Wizard's Cauldron is flying over the ditch to Auckland, New Zealand.

The launch of a pop up Harry Potter-themed bar in Auckland has been delayed, again.

Auckland's Wizard's Cauldron was due to open at the start of January, before being delayed until Thursday, January 30. But on Wednesday, just one day before it was due to open, staff for the Wizard's Cauldron said the bar wouldn't be opening until at least mid-March.

Its ticketing website was then updated, to take registrations of interest from March 25 to May 31.

Supplied The pop up bar will serve potions, as well as more traditional drinks.

The bar had originally been promoted as a "summer pop up" for the "witches and wizards of Auckland".

The Wizard's Cauldron promised to "combine magic and mixology", teaching punters to brew their own alcoholic potions - all while wearing magical robes complete with wands.

Supplied A pop-up bar called the Wizard's Cauldron is coming to Auckland, after setting up in the UK, US and Australia.

The popular pop up already had bars in Sydney and Melbourne, Australia, as well as Los Angeles, US and Nottingham, UK.

A spokesperson for the Wizard's Cauldron said the opening of the Auckland bar was delayed as the company focused on its other venues.

"Initially in October we were looking at January but then we launched Melbourne and LA ahead of time," they said.

Supplied/ Wizard's Cauldron To visit the Wizard's Cauldron, you need to buy register for 90-minute potion making sessions at the pop up bar.

Would-be potion masters were asked to register their interest via Event Brite.