On 16 November 2025 the Atlantic Cliff Adventure returns to the dramatic cliffs of Cascais, inviting participants to tackle either the 20 km “Trail Longo”, the 10 km “Trail Curto” or a 10 km walk with ocean views. The event starts at União Desportiva da Charneca and winds through scenic coastal trails featuring steep drops, rock outcrops and panoramic sea vistas. With chip timing for the trail distances, full support on-course, and a festive finish line atmosphere, it’s ideal for both seasoned trail runners seeking challenge and recreational runners or walkers aiming to soak in nature. Whether you’re chasing a fast time or just enjoying the terrain, the Atlantic Cliff Adventure blends the raw beauty of Portugal’s coastline with a well-organised trail experience.
Races
On 16 November 2025, the 20 K “Trail Longo” race will take runners on a rugged coastal trail event organized by the Associação da Charneca in Charneca, Cascais. Traversing seaside cliffs and forest paths, the route offers thrilling Atlantic Ocean views and rewarding trail terrain.
Also on 16 November 2025, the 10 K “Trail Curto” race invites participants to tackle a shorter but scenic course through the same coastal landscape of Charneca, Cascais. Hosted by the Associação da Charneca, it blends natural beauty with trail running challenge in a relaxed yet engaging format.
Weather based on historical averages.
FAQs
What is the Atlantic Cliff Adventure 20km?
How long is the Atlantic Cliff Adventure 20km?
Where does the Atlantic Cliff Adventure 20km take place?
What is the elevation gain of the Atlantic Cliff Adventure 20km?
How can I prepare for the Atlantic Cliff Adventure 20km?
How do I choose the right training plan for the Atlantic Cliff Adventure 20km?
On 16 November 2025, the 20 K “Trail Longo” race will take runners on a rugged coastal trail event organized by the Associação da Charneca in Charneca, Cascais. Traversing seaside cliffs and forest paths, the route offers thrilling Atlantic Ocean views and rewarding trail terrain.
The Atlantic Cliff Adventure 20km is 20km long.
The Atlantic Cliff Adventure 20km takes place in Cascais, Portugal.
Runna classifies the Atlantic Cliff Adventure 20km elevation profile as Rolling.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Atlantic Cliff Adventure 20km?
On 16 November 2025, the 20 K “Trail Longo” race will take runners on a rugged coastal trail event organized by the Associação da Charneca in Charneca, Cascais. Traversing seaside cliffs and forest paths, the route offers thrilling Atlantic Ocean views and rewarding trail terrain.
How long is the Atlantic Cliff Adventure 20km?
The Atlantic Cliff Adventure 20km is 20km long.
Where does the Atlantic Cliff Adventure 20km take place?
The Atlantic Cliff Adventure 20km takes place in Cascais, Portugal.
What is the elevation gain of the Atlantic Cliff Adventure 20km?
Runna classifies the Atlantic Cliff Adventure 20km elevation profile as Rolling.
How can I prepare for the Atlantic Cliff Adventure 20km?
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the Atlantic Cliff Adventure 20km?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Atlantic Cliff Adventure 10km?
How long is the Atlantic Cliff Adventure 10km?
Where does the Atlantic Cliff Adventure 10km take place?
What is the elevation gain of the Atlantic Cliff Adventure 10km?
How can I prepare for the Atlantic Cliff Adventure 10km?
How do I choose the right training plan for the Atlantic Cliff Adventure 10km?
Also on 16 November 2025, the 10 K “Trail Curto” race invites participants to tackle a shorter but scenic course through the same coastal landscape of Charneca, Cascais. Hosted by the Associação da Charneca, it blends natural beauty with trail running challenge in a relaxed yet engaging format.
The Atlantic Cliff Adventure 10km is 10km long.
The Atlantic Cliff Adventure 10km takes place in Cascais, Portugal.
Runna classifies the Atlantic Cliff Adventure 10km elevation profile as Rolling.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Atlantic Cliff Adventure 10km?
Also on 16 November 2025, the 10 K “Trail Curto” race invites participants to tackle a shorter but scenic course through the same coastal landscape of Charneca, Cascais. Hosted by the Associação da Charneca, it blends natural beauty with trail running challenge in a relaxed yet engaging format.
How long is the Atlantic Cliff Adventure 10km?
The Atlantic Cliff Adventure 10km is 10km long.
Where does the Atlantic Cliff Adventure 10km take place?
The Atlantic Cliff Adventure 10km takes place in Cascais, Portugal.
What is the elevation gain of the Atlantic Cliff Adventure 10km?
Runna classifies the Atlantic Cliff Adventure 10km elevation profile as Rolling.
How can I prepare for the Atlantic Cliff Adventure 10km?
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the Atlantic Cliff Adventure 10km?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
More
Sport:
Running
Tags:
Coastal
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Atlantic Cliff Adventure or Inijovem. All event details are based on publicly available information and are provided solely to help users discover running events. Runna does not use any official logos, images, or proprietary content from this event or its organiser. Any trademarks or names mentioned are used descriptively to identify the event in a factual manner. For the most accurate and up to date information (including to register or purchase an entry to the event), please visit the Atlantic Cliff Adventure website.
