If you are searching for a ‘hot time’ in Lake County, look no further than The Calpine Geothermal Visitor Center and Exhibit Hall. It’s one of the more unique attractions in Northern California’s Lake County.Located in the quaint hamlet of Middletown, nestled in the Mayacamas Mountains, the Exhibit Hall is full of interactive, exciting, educational, and updated glimpses into the world of geothermal energy. These informational installations were carefully crafted to grab your attention and arouse your curiosity. Community Tours of the area of The Geysers that lay in Lake County are also available.