Invercargill City Council staff will present a report at Monday’s community services committee meeting proposing to develop the multi-slide hydroslide at the Splash Palace complex.
Council aquatic services manager Peter Thompson said the slide system would be a major drawcard for Invercargill.
The $2.89million standalone structure would stand 11m tall and deliver a "phenomenally different experience" to users of the venue, he said.
The new design incorporated three slides.
The first, at 101m long, was a raft-slide which could accommodate up to two people; a second, 60m-long, slide would be suitable for all ages; and the third would be a 75m-long pitch-black slide looking to attract "thrill seekers" to the facility.
The multi-slide would be the tallest all-weather, indoor slide with as many slide options, in the country, Mr Thompson said.
The council recognised the need to replace the existing 40-year-old slide, which was originally situated at the old Queens Park pool, in its 2018 long-term plan.
