Divers join search for man missing in national park

The 61-year-old was last seen between 1pm and 3pm near the lower plunge pool within the park.

Mr O'Connell is described as about 180cm tall, of slim build, with shoulder length brown and white hair and a short beard. 

He was last seen wearing prescription glasses with dark blue frames, white shorts with a black and blue pattern, and no shirt. 

Mr O'Connell has distinctive tattoos on both shoulders.

Police, including park rangers, conducted an extensive search of the area using a range of resources and will continue checking the water on Monday with temperatures in the area expected to hit 36C.

Edith Falls remains open, although the lower plunge pool is closed to the public.

Police believe a number of people were in the area where Mr O'Connell went missing and are urging anyone with information to come forward.