Skull and Bones includes many achievements to discover and unlock. In some cases, these are secret achievements, like Skull and Bones' After A Long Day Of Sailing trophy, which you need to get your pirate groove on to get. It's an achievement hidden in plain sight in the Pirate Den of Sainte-Anne near a group of musicians, the core starting location for your pirating antics. However, it's a bustling port with plenty to see and do, so you might struggle to find the musicians in Sainte-Anne as you navigate Sainte-Anne's twists and turns.