A Western Australian man has died after jumping off a cliff in Bali.

Justin Jordanoff, 44, was holidaying at the popular Mahana Point on Nusa Ceningan when he jumped from a diving board into the ocean.

According to 9 News, the Busselton local leapt off the cliff, and was able to walk out of the water, down to the nearby Blue Lagoon Beach.

But, according to the 9 News report, he lost consciousness, after feeling dizzy and hot.

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Jordanoff was rushed to hospital but was pronounced dead on arrival.

An autopsy will confirm Jordanoff's exact cause of death, but his family suspects he may have suffered a heart attack.

"The local Balinese doctor believes Justin suffered a heart attack due to strenuous swimming against a rip in the ocean," the family told 9 News in a statement.

"He was fine after getting out of the water but half an hour later had the heart attack."

Jordanoff's family have travelled to Bali in the wake of the tragedy.