Enter the room while building a shinespark and use it on the lowest part of the ramp to cross the room and reach a raised ledge on the right side wall. From there, use SpaceJump to escape the water. Carry the shinespark to the bottom of the ramp by delaying the first Choot with two Power Beam shots, killing it, or bounceballing through it. The Choot can be shot diagonally from the middle platform, and again by running off that platform and aiming down to float above it.

Entrance condition:

{
  "comeInShinecharging": {
    "length": 6,
    "openEnd": 1,
    "steepDownTiles": 1
  }
}

Requires:

"canShinechargeMovementComplex"
"canCarefulJump"
{
  "or": [
    {
      "and": [
        "canMidairShinespark",
        "canDodgeWhileShooting"
      ]
    },
    {
      "and": [
        {
          "enemyDamage": {
            "enemy": "Choot",
            "type": "contact",
            "hits": 1
          }
        },
        "canNeutralDamageBoost",
        "canBounceBall"
      ]
    },
    {
      "and": [
        "canMockball",
        {
          "or": [
            "canPseudoScrew",
            "ScrewAttack",
            "Plasma",
            "Wave",
            {
              "ammo": {
                "type": "Missile",
                "count": 1
              }
            },
            {
              "ammo": {
                "type": "Super",
                "count": 1
              }
            }
          ]
        }
      ]
    }
  ]
}
"canHorizontalShinespark"
{
  "shinespark": {
    "frames": 123,
    "excessFrames": 5
  }
}
"canSpaceJumpWaterBounce"
{
  "or": [
    {
      "and": [
        "HiJump",
        "canSpaceJumpWaterEscape"
      ]
    },
    {
      "and": [
        "canTrickyJump",
        "canDownGrab"
      ]
    },
    "canWalljump"
  ]
}

Build up run speed and then use controlled springball bounces to cross the ocean to the far right ledge, and then use SpaceJump to reach the door. Mockball down the submerged ramp and begin SpringBall bouncing under water using the platforms. Disable SpringBall after the final jump once Samus starts falling again as a way to gain extra speed.

Requires:

{
  "notable": "Springball Bounce to the Door with SpaceJump"
}
"canTrickyJump"
"canSpaceJumpWaterBounce"
"canSpringBallBounce"
"canSpringFling"
"canMockball"
{
  "or": [
    "canDownGrab",
    "canWalljump"
  ]
}

Requires:

"canSuitlessMaridia"
"canSpaceJumpWaterBounce"
{
  "or": [
    "canWalljump",
    {
      "and": [
        "canSpaceJumpWaterEscape",
        "HiJump"
      ]
    },
    {
      "and": [
        "canTrickyJump",
        "canDownGrab"
      ]
    }
  ]
}

Standing from the rightmost platform, jump to the right of the stalagmite. Perform a midair wiggle to get to the left to the stalagmite, then precisely wall jump off of it. Then perform a frame perfect space jump at the water line to bounce on the water over to the Kamer platform.

Requires:

{
  "notable": "Space Jump Water Escape (Left to Right)"
}
"canSpaceJumpWaterBounce"
"canPreciseWalljump"
"canInsaneJump"
"canMidairWiggle"

Get to the right of the Choot on the rightmost platform. Spin jump up to the right, break spin while aligned with the wall, then freeze the Choot and stand on it while it is midair to the right of the stalagmite. Jump from the Choot to the water line and space jump at the water line to the Kamer platform.

Requires:

{
  "notable": "Space Jump Water Escape with Ice (Left to Right)"
}
"canSpaceJumpWaterBounce"
"canTrickyUseFrozenEnemies"
"canTrickyJump"

Freeze the right-most ramp Choot in a way where Samus can climb on top of it and use Space Jump to escape the water. Use a turn around to avoid knockback when making contact with the Choot to better time the use of Ice. Freeze the Choot as far to the right (on its lowest swoop), but this method is less precise than the alternatives. If Samus is inside the Choot when it is frozen, she can continuing moving freely. Jump on top either in spinjump or in Morph Ball Use XRay to standup, clipping partially into the above slope. Use a flately jump to fall out of the wall while still keeping enough height to spacejump on top of the water and escape.

Requires:

{
  "notable": "Space Jump Water Escape with Ice and XRay Standup"
}
{
  "enemyDamage": {
    "enemy": "Choot",
    "type": "contact",
    "hits": 1
  }
}
"canTrickyUseFrozenEnemies"
"Morph"
"canXRayStandUp"
"canSpaceJumpWaterBounce"
"canFlatleyJump"
"canKago"

Requires:

"canSuitlessMaridia"
"HiJump"
{
  "or": [
    "canTrickySpringBallJump",
    "canSpaceJumpWaterBounce"
  ]
}

Freeze the Choot when it swings right on its jump. Quickly get on top of it by first getting onto the pillar to the left, or with a SpringBall Jump. Perform a precise spring ball jump to get to the far right ledge, while avoiding hitting the water surface. While on the ledge, stand on the raised ground to the right and jump to the surface, then space jump across the water to the left.

Requires:

"canSuitlessMaridia"
"canTrickyUseFrozenEnemies"
"canTrickySpringBallJump"
{
  "or": [
    {
      "and": [
        "canResetFallSpeed",
        "canTrickyJump"
      ]
    },
    "canStationaryLateralMidAirMorph",
    "canSpringFling"
  ]
}
"canSpaceJumpWaterBounce"
"canWalljump"

Requires:

"canSuitlessLavaDive"
"Morph"
{
  "or": [
    {
      "and": [
        "canCarefulJump",
        "canMockball",
        {
          "lavaFrames": 180
        }
      ]
    },
    {
      "lavaFrames": 220
    }
  ]
}
{
  "or": [
    {
      "and": [
        "canSpaceJumpWaterBounce",
        {
          "lavaFrames": 120
        }
      ]
    },
    {
      "lavaFrames": 150
    }
  ]
}

Carefully and quickly lure the Gamets to the right door without letting them go off camera. It may help to kill any extra Gamets once they spread apart.

Requires:

"h_canNavigateUnderwater"
{
  "or": [
    {
      "resourceCapacity": [
        {
          "type": "Super",
          "count": 1
        }
      ]
    },
    {
      "obstaclesCleared": [
        "A"
      ]
    }
  ]
}
"canTrickyJump"
{
  "or": [
    {
      "and": [
        "Gravity",
        "SpaceJump"
      ]
    },
    {
      "and": [
        "HiJump",
        "canSpaceJumpWaterBounce"
      ]
    },
    {
      "and": [
        "Gravity",
        "canPreciseGrapple"
      ]
    },
    {
      "and": [
        "Gravity",
        "canStaggeredWalljump",
        "canInsaneJump"
      ]
    },
    {
      "and": [
        "HiJump",
        "canPreciseGrapple",
        "canInsaneJump"
      ]
    },
    "canTrickyUseFrozenEnemies"
  ]
}

Exit condition:

{
  "leaveWithGModeSetup": {}
}

Unlocks doors:

{"types":["ammo"],"requires":[]}

Requires:

{
  "or": [
    "Morph",
    "Gravity",
    "canSpaceJumpWaterBounce"
  ]
}

Requires:

{
  "or": [
    "Morph",
    "Gravity",
    "canSpaceJumpWaterBounce"
  ]
}

If Phantoon is defeated, start at least 2 tiles from the water line, and stutter just before entering it in order to charge a spark in room.

Requires:

{
  "or": [
    "f_DefeatedPhantoon",
    {
      "canShineCharge": {
        "usedTiles": 21,
        "openEnd": 0,
        "steepUpTiles": 3
      }
    }
  ]
}
"canStutterWaterShineCharge"
"canShinechargeMovementTricky"
"canWalljump"
{
  "or": [
    "canSpaceJumpWaterBounce",
    "HiJump"
  ]
}
"h_canShineChargeMaxRunway"
{
  "shinespark": {
    "frames": 29
  }
}

Exit condition:

{
  "leaveWithSpark": {}
}

Unlocks doors:

{"types":["ammo"],"requires":[]}

If Phantoon is defeated, start at least 2 tiles from the water line, and stutter just before entering it in order to shinecharge in room.

Requires:

{
  "or": [
    "f_DefeatedPhantoon",
    {
      "canShineCharge": {
        "usedTiles": 20,
        "openEnd": 0,
        "steepDownTiles": 3
      }
    }
  ]
}
"canStutterWaterShineCharge"
"canShinechargeMovementComplex"
"canWalljump"
"canSpaceJumpWaterBounce"
"h_canShineChargeMaxRunway"

Exit condition:

{
  "leaveShinecharged": {
    "framesRemaining": 30
  }
}

Unlocks doors:

{"types":["ammo"],"requires":[]}

Letting Mama Turtle sleep, climb the right wall using HiJump (with a down-grab) and escape the water with Space Jump .

Requires:

"canSuitlessMaridia"
"HiJump"
"canDownGrab"
{
  "or": [
    {
      "and": [
        "canSpaceJumpWaterBounce",
        "canWalljump"
      ]
    },
    "canSpaceJumpWaterEscape"
  ]
}

Use a Space Jump water bounce followed by a tight mid-air morph, to get a mid-air Spring Ball jump out of the water.

Requires:

{
  "notable": "Space Jump Spring Ball Jump"
}
"canSpaceJumpWaterBounce"
"canTrickySpringBallJump"
"can4HighMidAirMorph"

Requires:

"canSuitlessMaridia"
{
  "or": [
    {
      "and": [
        "canSpaceJumpWaterBounce",
        "canWalljump"
      ]
    },
    {
      "and": [
        "canSpaceJumpWaterEscape",
        "HiJump"
      ]
    }
  ]
}

Requires:

"canUnderwaterWalljump"
"canSpaceJumpWaterBounce"

Requires:

{
  "or": [
    {
      "and": [
        "Gravity",
        {
          "or": [
            "SpaceJump",
            {
              "and": [
                "canPreciseWalljump",
                "canConsecutiveWalljump"
              ]
            },
            {
              "and": [
                "HiJump",
                "canWalljump"
              ]
            }
          ]
        }
      ]
    },
    {
      "and": [
        "canSpaceJumpWaterBounce",
        "canWalljump"
      ]
    }
  ]
}
{
  "resetRoom": {
    "nodes": [
      1
    ],
    "mustStayPut": false
  }
}
{
  "refill": [
    "Super"
  ]
}

Requires:

{
  "or": [
    {
      "and": [
        "Gravity",
        {
          "or": [
            "SpaceJump",
            "canWalljump"
          ]
        }
      ]
    },
    {
      "and": [
        "HiJump",
        "canSpaceJumpWaterBounce",
        "canWalljump"
      ]
    }
  ]
}
{
  "resetRoom": {
    "nodes": [
      2
    ],
    "mustStayPut": false
  }
}
{
  "refill": [
    "Energy",
    "Super"
  ]
}

Use SpaceJump to break out of the water. Afterward, it's easiest to use a wall jump to gain height but this is not required.

Requires:

"canSuitlessMaridia"
"HiJump"
{
  "or": [
    "canSpaceJumpWaterEscape",
    {
      "and": [
        "canSpaceJumpWaterBounce",
        "canWalljump"
      ]
    }
  ]
}

Requires:

"canSuitlessMaridia"
{
  "or": [
    {
      "and": [
        "canSpaceJumpWaterBounce",
        "canWalljump"
      ]
    },
    {
      "and": [
        "canSpaceJumpWaterEscape",
        "HiJump"
      ]
    }
  ]
}

Requires:

"canUnderwaterWalljump"
"canSpaceJumpWaterBounce"

This can be done by turning off Gravity and HiJump to jump over both spike pits.

Requires:

"canSuitlessMaridia"
"canSpringBallJumpMidAir"
{
  "spikeHits": 1
}
{
  "or": [
    "canTrickySpringBallJump",
    {
      "and": [
        "canWalljump",
        "canSpaceJumpWaterBounce"
      ]
    },
    {
      "and": [
        "canJumpIntoIBJ",
        "h_canUseSpringBall"
      ]
    },
    {
      "and": [
        "canIBJ",
        "canBombJumpWaterEscape"
      ]
    },
    {
      "spikeHits": 1
    }
  ]
}

Requires:

"canSuitlessMaridia"
"HiJump"
{
  "or": [
    {
      "and": [
        "canSpaceJumpWaterBounce",
        "canWalljump"
      ]
    },
    "canSpaceJumpWaterEscape"
  ]
}

Requires:

"canSuitlessMaridia"
"HiJump"
{
  "or": [
    "canSpringBallJumpMidAir",
    "canSpaceJumpWaterBounce",
    "canUseFrozenEnemies"
  ]
}

HiJump with a good jump from the sand can reach the Solid Rock Maze region. Use the sandfall if Samus gets stuck in the sand.

Requires:

"canSuitlessMaridia"
"canPlayInSand"
"HiJump"
"canConsecutiveWalljump"
"canSpaceJumpWaterBounce"

Requires:

"canSuitlessMaridia"
"HiJump"
{
  "or": [
    "canPreciseWalljump",
    "canSpaceJumpWaterBounce"
  ]
}

Escape the water with either HiJump or SpaceJump, then carefully jump and morph into the tunnel.

Requires:

"canSuitlessMaridia"
"canMidAirMorph"
{
  "or": [
    {
      "and": [
        "HiJump",
        "canPreciseWalljump",
        "canWallJumpInstantMorph"
      ]
    },
    {
      "and": [
        "HiJump",
        "canSpaceJumpWaterEscape"
      ]
    },
    {
      "and": [
        "canPreciseWalljump",
        "canSpaceJumpWaterBounce"
      ]
    }
  ]
}

Kill the Choot, then space jump across the water and onto the center platform - it is slightly lower than the sides.

Requires:

"canSpaceJumpWaterBounce"

Watch for the water level to start falling to time the jump to escape at its lowest point. Then use SpaceJump to splash on top of the water. Time another jump with the water level or walljump to fully escape the water.

Requires:

"canSuitlessMaridia"
{
  "or": [
    {
      "and": [
        "canSpaceJumpWaterBounce",
        "canWalljump"
      ]
    },
    "canSpaceJumpWaterEscape"
  ]
}
"HiJump"
{
  "or": [
    {
      "enemyDamage": {
        "enemy": "Menu",
        "type": "contact",
        "hits": 1
      }
    },
    "ScrewAttack",
    "canStaggeredWalljump",
    "canPseudoScrew",
    "h_pauseAbuseMinimalReserveRefill"
  ]
}

Perform a canSunkenTileWideWallClimb to get to the water surface, then use space jump at the water surface. Then either use space jump when the water is low then a spring ball jump to escape, or space jump when the water is high into a tight midair morph.

Requires:

{
  "notable": "Escape - Suitless, Bootless, Space Jump"
}
"canSuitlessMaridia"
"canSpringBallJumpMidAir"
"canSunkenTileWideWallClimb"
"canTrickyJump"
"can4HighMidAirMorph"
"canSpaceJumpWaterBounce"

Space jump while partially submerged for more time to mid-air morph.

Requires:

"canSuitlessMaridia"
"HiJump"
"canSpaceJumpWaterBounce"
"can4HighMidAirMorph"