The ancient, imposing expanse of Greatwood Lake connects Greatwood Entrance, Greatwood Gorge, and your next destination, Orchard Farm. Unfortunately, it’s usually rife with Bandits—so keep your wits about you.
As soon as you reach Greatwood Lake from Greatwood Entrance, you’ll notice a path leading upward to the right. There’s a broken bridge at the very end and, joy of joys, a Silver Key. That should bring your total up to five Silver Keys, meaning you can open the Silver Key Chest on the island in the centre of the lake—earning yourself a delicious Elixir of Life. There’s a Health Potion tucked to the side of the strange spherical stone on the next island so feel free to grab that, too.