You may recall Del Mar reached a deal with the Governor's Office to buy the state-owned 350-plus acre fairgrounds for $120 million.
The state has been trying to raise money by selling off lucrative property. Critics say the fairgrounds are worth up to $700 million.
Details of Solana Beach's partnership offer have yet to be released, but the City Attorney says it would address 'sharing expenses, acquisition of the property, and the benefits of working together'.
The City of Del Mar wants to buy the fairgrounds to preserve the wetlands and keep it from being sold to developers who have proposed a major expansion including a hotel on site.