The sauna at Lower Valley Fitness Club in the city of Sunnyside in the state of Washington is part of a comprehensive facility that includes a pool, hot tub, and various workout areas. The gym offers 24/7 access with modern equipment, multiple specialized rooms for different types of workouts, and amenities like a heated pool and sauna. While most members praise the cleanliness and friendly atmosphere, some have reported issues with facility maintenance and membership communication.