Williams fooled Field into thinking they were making one of their X Files-style trips to the isle. But instead he got down on one knee and asked her to marry him. According to sources, the pair are frequent visitors to the 'Island of Romance" where they look for USOs – Unidentified Submerged Objects.
And friends say Robbie believed the island, which is just eight miles long, had the “perfect vibe" as a venue for such an important event.
“Robbie is a very sensitive soul who is a great believer in auras and atmospheres – the feeling on Santa Catalina was just perfect for him," the Daily Star quoted a source as saying.