Ron Simpson says his son Kevin suffered a broken hip, skull fracture and crushed ankle in the attack in Cabo San Lucas last weekend.
He says Kevin was robbed of $850 and pushed off a third floor level of the hotel to the concrete below.
He calls the attack a case of attempted murder.
Simpson says his son is in hospital in San Jose, Mexico, and is in good spirits, but he needs to be brought home to get more medical attention.
The Canadian foreign affairs department says it is gathering more information and has officials standing by to provide consular assistance as needed. (CHNL)
Also on HuffPost