Fodor's Expert Review Seltún
This colorful geothermal area, with raw bubbling mud pots and steam and hot little rivers emerging from the earth, is one of the gems of the Reykjanes peninsula. Located on the scenic Krýsuvík road (Route 42)—which passes volcanic sandstone cliffs, lakes with black-sand beaches, and outlandish lava formations—this stop is a must along the interesting drive. The minerals spewed from the ground at unbelievable temperatures stain the rocks in blood reds, deep blues, beige yellows, and neon greens. The nicely restored walking paths and spacious parking lot make it easily accessible for most visitors. There are also bathrooms available.