You can move across 3 without expending extra movement if you are using your walking speed on the ground or a floor.
Earth Walk
Raw data
{
"srd": false,
"name": "Earth Walk",
"page": 17,
"type": "entries",
"__prop": "raceFeature",
"source": "MPMM",
"entries": [
"You can move across {@quickref difficult terrain||3} without expending extra movement if you are using your walking speed on the ground or a floor."
],
"raceName": "Genasi (Earth)",
"basicRules": false,
"raceSource": "MPMM",
"_raceBaseName": "Genasi",
"_raceBaseSource": "MPMM",
"_raceSubraceName": "Earth"
}