The Scottish Highlands is generally considered very safe for solo female travelers. Crime rate is much lower than in other areas of the UK, with the most common issues being minor thefts. Most locals are friendly and willing to assist tourists. However, as with any travel, you should use common sense precautions. Keep your belongings secure, avoid unfamiliar areas after dark, and keep someone informed of your travel plans. Also, remember that Scottish Highlands can be remote and cellular service might not always be available. Always let someone know your hiking plans and try to stick to recognized trails.