The Bhitarkanika National Park in Kendrapada district has been closed for visitors for 10 days starting from Sunday.
A decision regarding closure of the national park was taken to carry out the annual saltwater crocodile census at the wildlife sanctuary.
Entry of foreign and local tourists into the park is prohibited during the period.
The park will reopen for tourists from January 12.
The Bhitarkanika National Park is the home to endangered saltwater crocodiles. As per the census 2021, there are 1,768 saltwater crocodiles in the wildlife habitat, which is the second largest mangrove ecosystem of India.