Get ready for a bit of a walk for this one! On your drive in you already got to see lots of steam coming from everwhere, and as soon as you get out of the car you're almost directly surounded by warm rivers and boiling mudpits.
Just follow the path up for 750 meters (~10 minutes) and this is where the real hike begins. It's more of a hike than you might expect it to be with the path going up and down, but the walk itself is beautiful. After hiking for about 3 kilometers from the parking lot, you'll get to a warm stream. It starts of lukewarm, but the further upstream you go, the warmer it gets. So be patient with taking off your clothes and jumping in.