Only requires a runway of 7 tiles in the adjacent room, but an extra tile makes for an easier jump.

Entrance condition:

{
  "comeInJumping": {
    "speedBooster": true,
    "minTiles": 7.4375
  }
}

Requires:

{
  "obstaclesCleared": [
    "f_MaridiaTubeBroken"
  ]
}
"canCrossRoomJumpIntoWater"