Sintra is considered an exceptionally safe destination for international travelers, characterized by its fairytale palaces and high-end tourism infrastructure. As a UNESCO World Heritage site located just outside Lisbon, it benefits from a heavy police presence and a community that is very accustomed to visitors. The primary "safety" concerns in Sintra are not related to violent crime, which is extremely rare, but rather to petty theft and environmental hazards. Pickpocketing can occur at crowded shuttle bus stops (like the 434 line) and near the entrance to the Pena Palace, where tourists are often distracted by the views. Additionally, the narrow, winding roads and steep, misty trails of the Sintra Mountains can be slippery and dangerous for those without proper footwear or those attempting to drive large rental cars through the town's ancient, one-way alleys. In 2026, the local government has implemented stricter traffic controls to reduce congestion, making the town even safer for pedestrians. As long as you keep your valuables secure in crowded areas and stick to marked paths when hiking near the Moorish Castle, Sintra remains one of the most secure and rewarding day trips in all of Europe.