The 557ft Eclipse can accommodate 36 guests, and boasts a cinema, conference facilities, children’s playroom, beauty salon, dance floor, swimming pool and sauna.
Built by Blohm Voss Shipyards and designed inside and out by Terence Disdale, Eclipse was custom-made for the Chelsea owner in 2010.
The incredible vessel also has two swimming pools, two helicopter pads, a disco hall, around 30 cabins, a mini-submarine, and even a missile defence system.
It is so large that the crew have trouble fitting into the majority of the world’s marinas.
The boat has armour-plating around Mr Abramovich’s master suite, bullet-proof windows and a laser system designed to dazzle long-lens photographers.
An onlooker said: “It’s a bit random but it’s a magnificent boat. There’s nothing else like it. It’s the sort of thing that you’d only see James Bond in.
“He must have some life. Lucky for some.”