Pas de la Casa is generally a safe destination for solo female travelers. It's a popular ski destination and is often bustling with tourists, providing a sense of security due to the crowd. The town has reliable public transport, reputable accommodations, and it's very easy to navigate. In the peak season, the venues are open till late at night. However, as with any bustling tourist destination, it's advisable to stay cautious of your belongings and surroundings. Most locals are welcoming and respectful to tourists, but like anywhere, occasional instances of pickpocketing or drunken behavior could occur. These instances are not common, however, and overall, the town presents a safe and friendly environment.