There is a grappleable Powamp directly above each of the 3 peaks.

If carrying a flash suit without Morph, Hi-Jump or Gravity can be used to attach to the center Powamp from the left.

Requires:

"h_navigateUnderwater",
"canUseEnemies",
"Grapple",
{"or": [
  "h_midAirShootUp",
  "HiJump",
  "Gravity"
]}