Mata Nacional de Sintra Loop

The Mata Nacional de Sintra Loop is a 12 km forest circuit through the national woodland surrounding Pena Palace in Sintra, Portugal, beginning at the Palacio Nacional da Pena on Estrada da Pena. The trailhead is reached by train from Lisbon Rossio to Sintra (about 40 minutes) followed by Bus 434 to the palace entrance; the forest itself is publicly accessible without a permit, separate from the ticketed palace grounds. Total ascent is roughly 450 m, with the high point at 528 m near the palace, and the terrain is a mix of packed dirt forest tracks, occasional stone steps, and sections of exposed granite outcrop near the ridge. Dense tree cover, planted from the nineteenth century onward with sequoias, cedars, and ferns, provides shade for most of the route, making it noticeably cooler than the exposed coastal trails nearby. Landmarks along the circuit include the Cruz Alta viewpoint, the highest point in the Sintra range, the Fonte da Pipa spring area, and glimpses of the Moorish Castle walls through the canopy. Hikers seeking a shorter route can turn around at Cruz Alta, roughly two-thirds of the way through the climb, cutting the total distance by about a third. There are no staffed refuge huts, but the Fonte da Pipa offers a natural spring water source, though its potability is not guaranteed and hikers are advised to carry their own supply. Trail markers can be inconsistent in the denser forest sections, so downloading the Wikiloc 'Mata de Sintra' track in advance is commonly recommended, and a light rain layer is useful given the forest's frequent mist.