The sign you referred to is the "Hiking parking lot" sign. This sign indicates a designated parking area specifically for hikers. When you see this sign, you are allowed to park your vehicle in the designated area if you are planning to go hiking.

These parking lots are typically located close to hiking trails and are intended to provide a safe and convenient place for hikers to leave their vehicles while they enjoy the outdoors. It's important to ensure that you park only in designated areas to avoid fines or obstructing other vehicles and emergency access.

If you have any more questions about this sign or other traffic rules, feel free to ask!