BBCThe concerns that intruders can enter an ancient theme parks site and try to film in disuse have caused calls to sell quickly.
The images of social networks have shown people wandering by Oakwood, near Narberth, Pembrokeshire, since it closed last month.
Pembrokeshire Tory MS Sam Kurtz wants a “fast sale”, saying that the longer empty, the possibilities of increasing the possibilities of “other problems that occur” increase.
The owner Aspro Parks, who closed Oakwood citing a drop in the number of visitors, has been asked to comment.
Oakwood opened in 1987, and was worshiped by generations of Welsh children, with walks that include the world -renowned roller coaster, which operated since 1996.
But Aspry confirmed at the beginning of March that Oakwood’s theme park would not succeed for the 2025 season, saying that “future investment is unsustainable.”
Kurtz wants a fast plan for a new future, believing that the longer the closed site remains, the more problems this will create.
“That is a risk to your [trespassers’] Health and safety, but also if this is a place that deteriorates, then potentially we lose the opportunity of a quick sale and a change for this site to work again, whatever it can be in the future, “he said.
“Actually because to see Aspry working with all those who are available, including the Welsh government, me and other companies, and potential buyers to see if we can get a quick sale of this asset.
“It’s a great asset.”
YouTubeDyfed-Powys police said he was “aware of the reports of people who obtained entrance to Oakwood” and had recovered a series of calls “that indicated intruders and potential crimes.”
The professor of economy at the University of Cardiff, Calvin Jones, said it was “quite unlikely” that a new operator would be interested in taking over the site of the Oakwood site as a theme park.
“If an established operator, who has already invested dozens of millions at the site around the last decade, cannot make it work, then it is unlikely that a new entering can work,” he said.
“I think we have seen new developments of issues and activities in Wales, but they have been much narrower in recent years.
“Things such as Cañoneros and Underground Trampolines and Mountain Cycling, where we see that people use the topography of Wales in an interesting and innovative way.”
Professor Jones said that the future of the site was about what type of use would allow local planning authority.
“It will depend a lot about the planning permit,” he said.
“I don’t think it’s a theme park. It can be a child of recreational use, depending on the view of planning agencies.
“It can be something very different.”
Bluestone National Park Resort, who used 700 people, is adjacent to Oakwood, but a spokesman refused to comment if he would be interested in buying the site.
Professor Jones said the vacation complex had previously expanded in a manner considered and “careful.”
“I suspect that Bluestone would look at this with a little restlessness unless the country is available at a low price,” he added.
“I can’t imagine that we see something fast with the earth if Bluestone will take it.”
Kurtz said that “many companies” had been in contact with him expressing interest in buying the old theme park.
He added: “This is a petition for the parent company: let’s work together and try to find a buyer for this site.
“I’m not heard from them yet. I would really want them to contact me.”
The Welsh government said “continues to commit” to the owner of the site.
“We recognize the significant value that the Oakwood site has for the locals and visitors, and we hope that a buyer will be presented to guarantee their continuous contribution to the local economy and the tourism industry,” said a spokesman.
Pembrokeshire’s advice confirmed that he had no hero with Aspry Parks.
Aspro did not respond to BBC Wales consultations.
