To travel from the Sintra historical center or the Sintra train station to the Pena National Palace, the most popular and efficient method is the Scotturb Bus 434 (Pena Circuit). This hop-on-hop-off style bus is specifically designed to navigate the steep, winding, and narrow roads that lead up the mountain, where private car access is strictly restricted. The bus runs frequently throughout the day, and a round-trip ticket costs approximately €7–€8. For those who prefer a more personalized experience, Tuk-Tuks and ride-sharing services like Uber or Bolt are available, though they are subject to the same traffic congestion and road closures that often plague the mountain during peak tourist hours. For the physically fit, there are hiking trails (like the Villa Sassetti trail) that offer a beautiful, albeit strenuous, 45-to-60-minute walk through the lush forest, providing a rewarding approach to the colorful palace. Because the palace is located at the highest point of the Sintra hills, walking is not recommended for those with mobility issues or anyone trying to maximize their time visiting multiple monuments like the Moorish Castle or Quinta da Regaleira in a single day.