She said making a submission to the council, asking for a marine centre to be considered and pursued, was one way for the public to have a say.
"We need people to step up and have their say."
Mrs Otto said Napier's Marineland history was still strong around the country, as a recent visit to Auckland revealed.
"I spoke to some people on the beach at North Shore and they said they remembered Marineland and asked what was happening to it.
"When I told them, they said 'are you kidding?"'
She said Napier, being a coastal city, was a perfect location for a marine centre, adding that similar centres around the world had proven popular.
"We have some new faces on council and I believe this is still worth a shot."
Submissions, which can be made online through the council's website, close at noon on Friday.