Enter this room while holding dash in the previous room, before the door transition. Do not release dash in the water or Samus will not be able to get blue speed.

Entrance condition:

{
  "comeInRunning": {
    "speedBooster": true,
    "minTiles": 0.4375
  }
}

Requires:

"canWaterShineCharge"
"h_canShineChargeMaxRunway"
{
  "shinespark": {
    "frames": 40,
    "excessFrames": 7
  }
}