Ronald and Ethan did an excellent job by getting rid of the paparazzi waiting at the dockside. By the time Prince Alexander and Daniel Grant arrived, the coast was clear. However, when they came, Jeff's elite bodyguards were all standing guard by the yacht and wouldn't let anyone near it. It did not matter who it was.
When Daniel sent one of his secret services agents to speak with the bodyguard to inform them who they were, the secret service was turned away saying they did not care that he is the son of the President of the United States Of America, or that the other one is a Prince of Stonasia. The order was that no one was allowed to get near the yacht, no matter who it was.
The secret service had no choice but to go back and relay the message to Daniel Grant and Prince Alexander. Daniel had no choice but to call Alexa to inform her that they had arrived and to his surprise, Alexa was not at the yacht but out shopping.