Simtokha Dzong, also known as Sangak Zabdhon Phodrang, is one of the oldest dzongs in Bhutan, located near Thimphu. It's a historically significant monastery and administrative center. Accessibility might be limited for individuals with mobility issues due to the traditional architecture. Visiting solo is possible, but a guided tour will enhance your understanding of its history and cultural significance. There may be seasonal restrictions or closures during festivals or official events; it's wise to check in advance. The cost to enter is generally included in the daily tourist tariff for Bhutan. A typical visit lasts around 1-2 hours, allowing time to explore the courtyard, temples, and intricate artwork. Dress respectfully when visiting, as it is a religious site.