Heart of Water gives you a FoM effect, and it is a 3rd level sorc/wiz spell.
TRAVEL DOMAINDeity: Fharlanghn.Granted Powers: For a total time per day of 1 round per cleric level you possess, you can act normally regardless of magical effects that impede movement as if you were affected by the spell freedom of movement. This effect occurs automatically as soon as it applies, lasts until it runs out or is no longer needed, and can operate multiple times per day (up to the total daily limit of rounds). This granted power is a supernatural ability.
Looking through this list, it's a 3rd-level spell for two classes. Nentyar hunter (Unapproachable East) lets you cast it with only 3 levels invested, but you'll still have to be an 8th-level character to get it.