Portugal is famous for its beautiful coastline, and some of the country's finest trekking trails are right along the cliffs and beaches. Let's start our journey with the 'Percurso dos Sete Vales Suspensos' in the Algarve region. Also known as the Trail of the Seven Hanging Valleys, this 6-kilometer trail offers some of the most spectacular views of the Portuguese coast. The trail winds through majestic cliffs, hidden beaches and natural rock formations, providing an unforgettable experience. The trail is relatively easy, making it ideal for families with children, but be sure to bring enough water, especially on hot days.

Another coastal wonder is the 'Trail of Headlands' in Lagoa. This trail, which is about 6 kilometers long, leads through scenic headlands, offering panoramic views of the Atlantic Ocean. The trail is well-marked and well-maintained, making it suitable for people of all skill levels. It is advisable to start the hike early in the morning to avoid the heat and crowds, and to enjoy the sunrise over the ocean.

For those looking for a longer adventure, the 'Fishermen's Trail (Luz-Lagos)' is an excellent choice. This section of the famous Fishermen's Trail connects the charming town of Luz with historic Lagos. The approximately 11-kilometer-long trail runs along spectacular cliffs, offering incredible views of the ocean and hidden coves. The trail is more challenging than the previous two offerings, but the reward is less crowded paths and wilder landscapes.

Also worth mentioning is 'Trilho São Julião', which, although shorter (about 2 km), offers equally breathtaking views of the Atlantic Ocean. This trail, located near Lisbon, is ideal for a short but intense walk with the family. The trail passes through picturesque cliffs and ends at a beautiful, often empty beach.

Comparing these coastal trails, the 'Percurso dos Sete Vales Suspensos' stands out for having the most diverse landscape and is best suited for families. 'Trail of Headlands' offers the best panoramic views, while 'Fishermen's Trail' is the longest and most challenging, ideal for adventurers. 'Trilho São Julião', meanwhile, is the shortest option, perfect for a quick trip from Lisbon. All of these routes have one thing in common - breathtaking views of the Portuguese coastline that will stay in your memory for a long time.

Away from the coast, Portugal offers equally fascinating trekking routes inland. One of the most impressive is the 'PR 1.2 Vereda do Pico Ruivo' in Madeira. This route, leading to the island's highest peak (1,862 meters above sea level), offers incredible views of the mountainous landscape and the Atlantic. The trail, which is about 5.6 kilometers long (round trip), is relatively demanding due to steep ascents and variable weather conditions, but the views from the summit alone are absolutely worth the effort. Remember to wear appropriate footwear and warm clothing, as the temperature at the summit can be much lower than at the foot.

In mainland Portugal, in the Serra da Estrela region, you'll find the 'PR7 MTG Rota dos Poios Brancos'. This 10-kilometer trail leads through the scenic terrain of the highest mountain range in mainland Portugal. The route offers a variety of landscapes - from dense forests to rocky peaks, as well as the opportunity to observe rich flora and fauna. It is a trail of medium difficulty, ideal for families with older children or experienced hikers.

For those who prefer less demanding trails, the 'Barragem do Rio da Mula' in the Sintra-Cascais Natural Park is an excellent option. This easy, 3-kilometer trail around the picturesque dam lake is perfect for a family walk. The trail runs through a eucalyptus forest, offering shade on hot days, and the reservoir itself creates a picturesque setting. It's the perfect place for a picnic and bird watching.

The 'Porta do Vento' in the Serra de Aire e Candeeiros Natural Park is also an interesting option. This trail, although short (about 2 km), offers fascinating views of the region's distinctive limestone landscape. The trail leads to the famous 'wind door' - a natural rock formation that looks like a gate leading nowhere. This place is especially magical at sunset.

Passadiços do Paiva', on the other hand, is for those looking for a long but relatively easy trail. This 8km trail follows wooden bridges along the Paiva River, offering incredible views of wild waterfalls and lush vegetation. The trail is well suited for families, but be sure to wear comfortable footwear due to the numerous stairs.

Comparing these routes, 'PR 1.2 Vereda do Pico Ruivo' offers the most spectacular views, but is also the most physically demanding. 'PR7 MTG Rota dos Poios Brancos' is a good compromise between difficulty and variety of landscapes. 'Barragem do Rio da Mula' and 'Porta do Vento' are the shortest and easiest options, ideal for family trips. 'Passadiços do Paiva' stands out for its unique infrastructure and the opportunity to enjoy wildlife up close. Each of these routes offers a unique experience and the opportunity to discover the diversity of Portugal's landscapes, from mountains to forests and rivers.

For true trekking enthusiasts, Portugal also offers fascinating long-distance routes that allow for deep immersion in the country's nature and culture. One such offering is the 'Fonte Santa (Rota vicentina)', part of the famous Fisherman's Route (Rota Vicentina). This 221-kilometer route runs along the west coast of Portugal, from Sines to Lagos, offering incredible ocean views, wild beaches and traditional fishing villages. The trail can be divided into stages, making it accessible to both seasoned hikers and those who prefer shorter trips. It's worth remembering to be adequately prepared, especially if you're planning a longer hike - taking enough water and sunscreen is key, especially in summer.

For those looking for less frequented trails, the 'Vale Cornaga' in the Lourinhã region is a real gem. This scenic gorge offers a peaceful route along a stream, with the opportunity to admire small waterfalls and lush vegetation. The trail is relatively easy and short (about 3 km), making it ideal for families with children or those looking for a relaxing stroll surrounded by nature.

Another interesting option is the 'Trilho dos Moleiros' in the Lousã region. This 13-kilometer trail runs through the picturesque terrain of Serra da Lousã, offering a fascinating insight into the history and culture of the region. The trail follows old paths once used by millers, leading through dense forests, past old water mills and traditional stone villages. It's a great option for those who want to combine physical activity with exploring local cultural heritage.

Also worth mentioning is the 'Rocha da Pena', a protected rock formation in the Algarve region. The route around and to the top of this limestone massif offers not only beautiful views, but also the opportunity to observe rare plant and animal species. The trail is about 5 km long and moderately difficult, with a few steep sections, but the reward is panoramic views of the surrounding hills and coastline.

Comparing these trails, 'Fonte Santa (Rota vicentina)' stands out as the longest and most challenging, ideal for adventurers and long hikers. 'Vale Cornaga' is the easiest and shortest option, perfect for family hikes or leisurely walks. 'Trilho dos Moleiros' offers the richest cultural experience, combining the beauty of nature with the history of the region. 'Rocha da Pena', on the other hand, is the best option for lovers of geology and unique ecosystems.

Whichever route you choose, each offers unique experiences and the opportunity to discover lesser-known but equally fascinating aspects of Portuguese nature and culture. Remember to always be properly prepared - comfortable trekking shoes, sufficient water and snacks, and a map or GPS app are essentials for any expedition. Also respect the local wildlife and communities by leaving only footprints and taking all trash with you. This will ensure that these beautiful trails remain accessible to future generations of nature lovers and trekkers.