Moruge Swamp

In The Adventure of Link, the Moruge Swamp is a swamp directly to the north of the Water Town of Saria. It borders a mountain range to the north, and a cave blocked by a boulder can be found where it borders said mountain range. It is in this area that Link finds the Water of Life, which he gives to a sick child in the Harbor Town of Mido. A 1-Up Link Doll and a Fairy can also be found here.

Link has to cross its motion-inhibiting mire on his way to the Water Town of Saria during his quest to wake Princess Zelda.