Tauranga is one of two cities that will be visiting seven times by Ovation of the Seas this cruise ship seas.

Ovation of the seas is New Zealand's biggest cruise ship and is expected help boost the NZ economy in passenger spend alone during her third New Zealand season.

She will be visiting Wellington for the first time today.

Royal Caribbean has upped the ante again this summer with the megaship set to make 51 port visits in New Zealand, up from last season's 29 visits.

Dunedin and Wellington are set to benefit the most from the extended third season with ten and eight visits from the ship respectively, while Auckland and Tauranga will receive seven visits this season.

In the 2018/19 season, 168,000 tonne, 347 metre Ovation of the Seas is estimated to inject more NZD$33 million to the New Zealand economy in passenger spend alone.

According to an industry report released earlier this year by the New Zealand Cruise Association, more than 270,500 passengers travelled to New Zealand during the last season, and that figure is set to continue to grow to 344,000 by the end of the 2018/19 season.

By itself, the Ovation of the Seas has capacity for 6000 guests and crew and has attracted new adventurous cruisers with features like a rock climbing wall, trapeze circus school, dodgem cars, FlowRider surf simulator, and a restaurant by Jamie Oliver.

Joining Ovation of the Seas in the region is Royal Caribbean's family-favourite Explorer of the Seas and the beloved Radiance of the Seas.