Euro Disney, which owns Disneyland Paris, posted record annual losses in the wake of the jihadist attacks on Paris which weighed heavily on tourist bookings.
During its financial year, which ended in September, group turnover fell 6.91 percent to 1.27 billion euros following a 10 percent drop in visitor numbers, a statement said.
"Disneyland Paris had an exceptionally challenging year. We have been impacted by various external factors that have significantly affected the tourism business in the Paris region," said Euro Disney president Catherine Powell in the statement.
"In this adverse environment, revenue decreased 7%. This, together with the increase in costs driven by our future growth strategy of continually improving the guest experience plus the costs of additional security measures, resulted in a significant decrease in our operating performance for the fiscal year."
The statement was issued as France prepares to mark the year anniversary of the deadly attacks on the French capital which claimed 130 lives.
Over the period, the group registered a net loss attributable to shareholders of 705 million euros, compared with 84.2 million the previous year.
Overall net loss stood at 858 million euros for the year, which included a 565 million euro impairment charge.
"As a result of the adverse economic conditions of the tourism industry in Paris... the group performed an impairment test of all its long-lived assets and determined its assets were impaired," it said.
"The impairment charge had no impact on the group's cash position or cash flows."