Public transport in Cascais is efficient, modern, and well-integrated into the wider network of the Lisbon metropolitan area, making it easy for visitors to explore the coastline and neighboring towns without a car. While the historic center is compact and best discovered on foot, a reliable system of trains and buses connects travelers to popular beaches, the natural park, and the capital.
The backbone of the local transport system is the urban train (CP - Comboios de Portugal). The Cascais Line runs along the scenic coast, connecting the town center directly to Lisbon's Cais do Sodré station. This railway does not just serve as a commuter link but is also a tourist attraction in itself, offering sweeping ocean views for much of the journey. Trains run frequently, often every 20 minutes, from early morning until late at night, acting as the primary mode of travel for those day-tripping to or from the capital.
For exploring the municipality and reaching destinations like Guincho Beach or the Sintra hills, the bus network is essential. These services are largely operated by Carris Metropolitana, easily recognizable by their yellow branding. The main bus terminal is located centrally, just beneath the Cascais Villa shopping center, adjacent to the train station. From here, you can catch routes that loop around the town or head towards the rugged western coastline.
To pay for your journeys, the most convenient option is the rechargeable Navegante Occasional card (formerly known as Viva Viagem). This paper card can be purchased for a nominal fee at automatic vending machines in the train station or at ticket offices. Tourists are advised to use the "Zapping" method, where you load a monetary value onto the card (e.g., €5 or €10), which is then deducted as you travel. This is generally cheaper than buying single tickets onboard and can be used on both the train and Carris Metropolitana buses. Remember to always validate your card by tapping it on the readers before boarding the train or immediately upon entering a bus.
A unique and highly popular feature of the city's transport is the BiCas bike-sharing system. Managed by the local mobility authority, these "bicycles of Cascais" are available for free daily use. Visitors can pick one up at designated stations (such as near the train station or the marina) by presenting a valid ID and sometimes leaving a small deposit. It is an eco-friendly and fun way to ride along the dedicated coastal cycle path (ciclovia) to Guincho.
For those preferring more direct and private transport, taxis are widely available and can be found at designated ranks; they are typically beige or black with a green roof. Alternatively, ride-sharing apps like Uber and Bolt operate extensively in the area, offering a convenient way to get around, especially for evening trips or reaching secluded restaurants. While car rentals are an option, parking in the center can be challenging and expensive during peak summer months, making the combination of walking, buses, and ride-shares the most stress-free choice.