The Lost Submarine: Operation Waterman

Do you remember Ljubljana's legend about the Waterman who kidnapped the beautiful, flirtatious, picky Urška? While at a dance on the banks of the Ljubljanica River, she rejected suitors one by one until she met the Waterman and paid for her coquettish behaviour with her life. Your mission? Oh, nothing much – just save Urška!
Be careful though – there are only 60 minutes of air left in the submarine!