The Legend of Zelda: A Link to the Past/Swamp Palace

'Many areas near the Swamp Palace are closely tied to areas in the Light World. By warping from the Dark World while standing within the stake boundaries in the southwest or in the circle of bushes south of the Haunted Grove, adventurers can explore high elevations in the Light World.'

Points of interest
The Plains of Ruin and the marshes surrounding the Swamp Palace are populated with several kinds of evil creatures. Adventurers report sightings of bomb-flinging Zirros, Rupee-snatching Pikits and other swamp-dwellers. They are mean spirited but weak. Most explorers can defend themselves with a standard sword and shield.

Haunted Grove
The legendary Flute Boy of the Haunted Grove often played music near his Light World home. The Flute Boy is said to have been able to communicate with animals by using his Flute. He could even call a feathered friend and hitch a ride to anywhere in the land. When the Golden Power of the Triforce attracted the Flute Boy to the Dark World, though, Ganon transformed him into an animal so that he could never play the Flute again. Upon telling his story to you, the Flute Boy gives you a Shovel so that you can find and use the Flute Boy's buried Flute.

The Flute and the Duck
In the Haunted Grove of the Dark World, you meet a creature who gives you a shovel and tells you how the boy had been placed under a spell. The Flute, says the monster, must be found if the spell is to be broken. You must dig around the Light World's Haunted Grove in order to find the Flute. (It can be found in the upper-left corner of the Grove). Once you collect it, head to Kakariko Village and visit the weathercock near the center of time. Use the Flute, and the once lost per duck will return to life. The Duck, when summoned by the Flute can carry Link to one of eight sites around the Light World. Each site is numbered on your Overworld Map. The area near the desert can only be reach by Duck-transport, and the other areas become more easily accessible.

The truth about Bombos
The spell of Bombos has no special purpose in Link's quest such as opening a dungeon, but it is useful in battle. Obtaining the spell, however, isn't easy. You must warp from a patch of ground at the east end of the Dark World canyon using the Magic Mirror. In the Light World, that patch of ground is on top of a cliff. Once on top of the cliff, you can reach the Mudoran monolith that holds the spell.

The warp for life
South of the Haunted Grove in the Dark World, you will find a circle of bushes. If you stand in the center of them and use the Magic Mirror to warp back to the Light World, you will find yourself high on a ledge that was previously unreachable. There is a cave perched on the ledge that you can now enter. Inside, you will find a Piece of Heart.

The Swamp Palace
When explorers enter the Swamp Palace, they are unable tocorss the empty indoor canal because of its steep, shear sides. The key to getting to the other side is understanding the connection between the Light and Dark Worlds. Standing just outside of the place, you can warp to the Light World Watergate and pull the switch inside, allowing the water to flow. Then return to the Swamp Palace in the Dark World and swim across the water-filled canal.