Hydro is a longstanding Calistoga spot and one of the only bars in town. The scene is really all over the place, with both locals and bridal parties looking for a casual place to drink and have a burger. Every Sunday a swing band takes the stage, and occasionally, you might even catch an impressive Elvis impersonator. The food goes one step beyond basic bar food, especially when it comes to the pozole, vegetarian lasagna, and the giant brownie sundae. Join the locals and come here to party, but it’s also a good low-key lunch and Happy Hour (3-6pm Mon-Fri) option.