Sintra's Palace Gardens
Subtropical fern valleys, 85-hectare forests, underground grottos, and one of Europe's richest botanical collections. The gardens are reason enough to visit.
Sintra's gardens don't get the attention they deserve. Most visitors rush to the palace interiors, snap a photo, and move on — missing the extraordinary botanical collections, hidden forest trails, and subtropical landscapes that surround each palace. The Serra de Sintra's Atlantic microclimate allows plants from five continents to thrive here. If you care about gardens, Sintra is world-class.
Palace Gardens Ranked
Monserrate Gardens
Monserrate Palace · Subtropical botanical collection
Sintra's finest gardens, created by Francis Cook in the 1860s with plants collected from around the world. The microclimate here — Atlantic moisture + sheltered valley — allows subtropical species to thrive alongside Mediterranean plants. The fern valley is otherworldly: a damp ravine filled with massive tree ferns that looks like a Jurassic Park set.
Garden highlights
- Fern Valley — a ravine filled with tree ferns and tropical species
- Mexican Garden — agaves, yuccas, and cacti from the Americas
- Rose Garden and scented plants collection
- Waterfall grotto with subtropical ferns
- Over 3,000 exotic species from five continents
Best season: April-June (rhododendrons and subtropical plants at peak)
Follow the circular route: palace lawn → fern valley → Mexican garden → rose garden. Don't skip the fern valley (many visitors do) — it's the highlight.
Pena Palace Park
Pena Palace · Romantic landscape park with exotic species
Ferdinand II didn't just build a palace — he created an entire forest. Over 85 hectares of planted parkland surround Pena, with species he collected from Brazil, North America, Japan, and Australia. Walking the grounds feels like a botanical expedition: you pass from a European oak forest into a grove of giant sequoias, then into a valley of exotic ferns. The grounds are vast enough that you can find total solitude even in summer.
Garden highlights
- 85 hectares of forest with species from every continent
- Sequoia trees, cork oaks, and Japanese cryptomerias
- Valley of the Lakes — artificial ponds with aquatic plants
- Cruz Alta trail (highest point at 528m)
- Camellias and magnolias in spring
Best season: March-May (magnolias, camellias, azaleas bloom)
Most visitors rush from the gate to the palace and miss the grounds. Take the forest paths instead of the main road. The Valley of the Lakes is a 15-minute detour that almost nobody takes.
Regaleira Gardens
Quinta da Regaleira · Symbolic romantic garden with hidden features
Less a garden and more a three-dimensional puzzle. Regaleira's 4 hectares are layered vertically — paths on multiple levels, connected by tunnels, stairs, and hidden passages. Every turn reveals something: a grotto entrance behind a waterfall, stepping stones across a pond, a tunnel emerging at a different level. The planting is lush and intentionally wild, creating an enchanted forest feeling. It's the anti-Monserrate: not about botanical specimens but about mystery and discovery.
Garden highlights
- Initiation Well (27m spiral descent)
- Underground tunnel network connecting garden features
- Waterfall grottoes and hidden caves
- Lakes with stepping stones
- Dense, layered paths on multiple levels
Best season: Year-round (green and atmospheric in every season)
Don't follow a map — the joy is getting lost. The tunnels all eventually lead somewhere. Look for hidden entrances behind waterfalls and under staircases. Children adore this.
Seteais Palace Gardens
Tivoli Palácio de Seteais (hotel) · Neoclassical formal gardens
The smallest but most elegant garden on this list. Seteais is a luxury hotel in an 18th-century palace, but the rear gardens and terrace are open to anyone. The formal style — clipped hedges, symmetrical lawns, clean lines — contrasts beautifully with Sintra's wild, romantic gardens elsewhere. The view from the terrace is arguably the best in Sintra.
Garden highlights
- Manicured lawns with ocean and Serra views
- Formal hedged walkways
- The terrace viewpoint (open to non-guests)
- Rose garden in season
Best season: May-September (roses in bloom, terrace at its best)
Walk through the arch to the terrace. Order a coffee or glass of wine at the bar and sit on the terrace. It's free to visit the gardens; you only pay if you order drinks.
National Palace Gardens
National Palace · Royal kitchen gardens and formal courtyards
The most modest gardens on the list but charming in their simplicity. The National Palace courtyards offer a peaceful escape from the old town streets, with views up at the distinctive chimneys. Less a destination garden and more a pleasant complement to the palace interior visit.
Garden highlights
- Intimate courtyard gardens
- Views of the iconic twin chimneys
- Town-center accessibility (flat ground)
Best season: Year-round
The courtyard is a nice spot for photos looking up at the chimneys. Combine with the palace interior visit — don't come just for the gardens.