Start an IBJ by either bouncing on the sand with Spring Ball, doing a stationary spinjump on the sand, or by crouch jumping in the sand while holding down.

Requires:

{"noBlueSuit": {}},
"Gravity",
"canLongIBJ",
"canJumpIntoIBJ",
{"or": [
  {"and": [
    "canTrickyJump",
    "can4HighMidAirMorph",
    "canPlayInSand"
  ]},
  "h_useSpringBall"
]},
{"or": [
  "canDoubleBombJump",
  "canStaggeredIBJ",
  "canBePatient"
]}