5.2K views · 116 reactions | Interested in finding out about what it's like to explore the silent deep in a Vanguard-class submarine?  Head over to Channel 5 at 9pm tomorrow and watch 'On Board Britain’s Nuclear Submarine: Trident.’ Watch this clip below to listen to broadcaster Rob Bell's once in a lifetime expeience with the Royal Navy's remarkable submariners. | Royal Navy and Royal Marines Charity | Facebook