Metroid Prime/Gravity Suit

In the Phendrana Drifts, there is a room called the Gravity Chamber. Route: You can access the South Quarantine Tunnel in the Quarantine Cave than proceed to Transport to Magmoor Caverns South, Transport Access, Frozen Pike, Frost Cave Access, Frost Cave, Upper Edge Tunnel, Phendrana's Edge, Lower Edge Tunnel, Hunter Cave and Lake Tunnel. Go into the chamber and somehow, with the thermal visor, see the gravity suit. You'll need to avoid the aqua reapers, but it's done easily enough. You'll then have the Gravity Suit. Now when you're in water, your motion won't be restricted.