Castlevania: Aria of Sorrow/Underground Reservoir

The underground reservoir is located directly below the castle corridor, and can only be reached by defeating Death from the ../Clock Tower/ and collecting the Skula soul. It provides access to ../The Arena/ and ../Underground Cemetery/, both of which are accessed at the bottom-left corner of the section.

Reaching the arena
The fastest route to the arena starts at the first save point in Castle Corridor. From that point, head down, and to the right to enter the underground reservoir.

The first room is a large cavern with flowing water. Go through this area and exit downward, and take a right turn. Head all the way down the vertical passage, and take a right turn at the bottom to reach a save point. Exit to the left, until you reach a large room. Exit at the bottom-right, then exit at the bottom-left of the next room. Continue along the corridor until it branches downward.

At this point, you have two paths that you can use. The next location, ../The Arena/ continues to the left. The other path leads to the ../Underground Cemetery/, and is straight down.

You will encounter another cutscene when you approach the arena, where Yoko gets attacked by Graham.

Waterfall
Just before the long corridor leading to The Arena is a large room. If you can reach the top-right corner, you will pass through a small corridor with Dryads, before entering a room with a waterfall.

To break past the waterfall, use the Undine soul combined with either Curly, Devil, or Manticore. Charge through the waterfall with the large body to reach the ../Forbidden Area/.

Items

 * Rahab's Sword is found left of the vertical shaft on the left hand side of the sector.
 * Elfin Robe found above the western entrance corridor.
 * Milcan's Sword located at the top-center of the large room.
 * Osafune located the right, behind an underwater secret wall.
 * Rune ring located at top-right corner of the section.
 * Ronginus' Spear located at the top-left alcove near the waterfall.
 * Eversing behind waterfall.
 * Armor of Water located at the bottom of this section.
 * Ancient Book 3 located at top-right corner.
 * $1000 in room to the right of eastern entrance.
 * $2000 in top-right room in the sector.
 * Super potion located in large room above the first save point.
 * Super potion located in large waterfall room, accessible from the top-right section.
 * Super potion behind middle of waterfall
 * Tasty meat available on the left path from Castle Corridor.
 * High mind up is within the water near the entrance to The Arena.
 * Pudding is at the bottom left corner.


 * Mana Prism in path just above the route leading to The Arena.

Enemies

 * Big Golem
 * Maneater