Escape the water with a Spring Ball Jump, Space Jump on the water line to the left, or crouch jump + down grab onto the right Kamer platform.

Requires:

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