Ontario is calling on developers to pitch ideas for revitalizing Ontario Place and creating new public attractions on the site of the former theme park on Toronto's waterfront.

The province issued a call for submissions Friday asking developers to pitch their own innovative, futuristic plans for the west island of Ontario Place.

The government put few limits on the proposals, but says public access to the site must be preserved and there can be no casinos, residential development or large-scale music events.

The land is to remain in public hands, but long-term leases will be allowed.

The province closed Ontario Place to the public five years ago due to falling revenues at the government-owned theme park and tight provincial finances.

Last month, the province opened the new Trillium Park and William G. Davis recreational trail on Ontario Place's east island.