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Jersey

Coastal National Park

Routes
Hikes
Jersey

Coastal National Park

The best waterfall hikes and walks in Coastal National Park

4.7

(839)

7,026

hikers

17

hikes

Waterfall hiking trails in Coastal National Park traverse a landscape characterized by its proximity to the sea, featuring coastal paths, dramatic cliffs, and often hidden coves. The terrain can vary from gentle, undulating paths suitable for families to more challenging ascents and descents along the coastline. The region's geology often contributes to the formation of seasonal waterfalls, particularly after rainfall, adding to the scenic appeal of its hiking routes.

Best waterfall hiking trails in Coastal National Park

  • The most popular…

Last updated: July 9, 2026

4.7

(30)

123

hikers

#1.

Grosnez Castle Ruins – Plémont Bay loop from Grosnez Castle

8.38km

02:17

110m

110m

Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.

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Moderate

Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.

Hard
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Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

Moderate

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

Easy
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Tips from the Community

Dietmar
November 22, 2025, Grosnez Castle Ruins

The ruins in the far northwest corner of the island are a beautiful place for a hiking break.

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A wooden bridge over a swamp keeps feet dry and protects the toads. Toads are the identifying animal of the people of Jersier.

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Impressive sculpture near the upper parking lot of Plémont Bay

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Visit the island's west coast and admire the giant willow puffin sculptures, commissioned by Bird on the Edge and the National Trust for Jersey. The sculptures were displayed to mark the arrival of the puffins, acknowledging the plight of these wonderful birds and Jersey's vital role in protecting puffins and other seabirds. Source: https://www.jersey.com/things-to-do/attractions/listings/puffin-sculpture/

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Andi
July 11, 2025, Plémont Bay

This is arguably one of Jersey's most beautiful beaches. Plémont boasts a unique natural beauty and enchanting beauty. A sandy bay on the northwest tip of the island, it is home to numerous rock pools, fascinating sea caves, and even a freshwater waterfall. Plémont is a popular beach among locals, sheltered by high cliffs and gentle surf. At low tide, hidden caves reveal themselves, making for a refreshing adventure, and little ones can explore rocky pools with sandy bottoms. Check the tide times before your trip to Plémont to find the right time for your beach adventure. At high tide, the sand is covered, and locals retreat to the rocks, where Royal Navy (RNLI) lifeguards patrol the beach throughout the summer. Source: https://www.jersey.com/de/things-to-do/points-of-interest/listings/plemont-bay/

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Andi
July 11, 2025, Piemont Bay

The coastal path above the cliffs is also beautiful.

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Grosnez Castle is a small 14th-century castle ruin located 4.5 kilometers from Saint Ouen, on the northwest coast of the Channel Island of Jersey. The name is derived from the Patois word grar ness – for "grey headland" – an apt description of the site. The castle was built around 1330 by Sir John des Roches. The gatehouse, the highest remaining part of the ruins, was protected by a drawbridge and a portcullis. However, the castle had several weaknesses. There was no second level of defence and no sally ports for counterattacks. Most importantly, there was no water supply within the walls. The castle was captured by French troops in 1373 and 1381 and was probably destroyed during the occupation of Jersey (1461–1468). Source: https://de.m.wikipedia.org/wiki/Grosnez_Castle

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Andi
July 9, 2025, St. Ouen's Bay

With its sun-drenched headland and soft sandy beaches, Jersey's west coast offers some of the island's most enchanting spots. A long stretch of golden sand and views of the Atlantic make St. Ouen's Bay truly special. Source: https://www.jersey.com/things-to-do/points-of-interest/listings/st-ouens-bay/

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Frequently Asked Questions

How many waterfall hiking trails are available in Coastal National Park?

Coastal National Park offers a selection of 16 dedicated waterfall hiking trails. These routes vary in difficulty and length, providing options for different preferences and fitness levels.

What is the best time of year to experience the waterfalls in Coastal National Park?

The waterfalls in Coastal National Park are often seasonal, appearing most prominently after periods of significant rainfall. Therefore, late autumn, winter, and early spring are generally the best times to visit, as the increased precipitation ensures the waterfalls are at their most impressive. Always check local weather conditions before heading out.

Are there easy waterfall hikes suitable for families or beginners?

Yes, Coastal National Park has several easy waterfall hikes perfect for families and beginners. For example, the Grosnez Castle Ruins – Plémont Bay loop from Grosnez Castle is an easy 3.7-mile path offering scenic coastal views and access to historic sites. Another gentle option is the Café Ouen loop from Grosnez Castle, a 2.5-mile trail through coastal scenery.

Are dogs allowed on the waterfall trails in Coastal National Park?

Many trails in Coastal National Park are dog-friendly, but it's always recommended to keep dogs on a leash, especially near cliffs, wildlife, and other hikers. Please check specific trail regulations or local signage for any restrictions, particularly in sensitive ecological areas or during nesting seasons.

Are there any circular waterfall routes in the park?

Yes, many of the waterfall hikes in Coastal National Park are designed as circular routes, allowing you to start and end at the same point without retracing your steps. Examples include the Grosnez Castle Ruins – Plémont Bay loop from Jersey Airport and the Plémont Bay – Grève de Lecq Tower and Beach loop from Grosnez Castle.

What kind of terrain can I expect on these waterfall trails?

The terrain in Coastal National Park is diverse, characterized by coastal paths, dramatic cliff edges, and varied landscapes. You can expect a mix of gentle, undulating paths, particularly on easier routes, and more challenging ascents and descents along the coastline on moderate to difficult trails. The paths can be uneven, especially after rain, so sturdy footwear is essential.

What should I bring for a waterfall hike in Coastal National Park?

For a comfortable and safe waterfall hike, we recommend bringing waterproof clothing, as you might encounter spray near waterfalls and unpredictable coastal weather. Sturdy, waterproof hiking boots with good grip are essential for potentially slippery or muddy paths. Also, carry sufficient water, snacks, a map or GPS device, and a fully charged phone. Binoculars can enhance wildlife viewing.

What can I see besides waterfalls along the trails?

Beyond the beautiful waterfalls, the trails offer stunning coastal vistas and access to various points of interest. You can explore historical sites like Le Don Hilton (White Cottage) and Kempt Tower, or natural monuments such as Le Pinacle and Les Landes Cliffs. The Plémont Bay – Grosnez Castle Ruins loop from St Ouen is a moderate route that passes several of these coastal highlights.

Are there places to eat or drink near the waterfall trails?

Yes, some trails offer convenient access to cafes or eateries. For instance, the Café Ouen loop from Grosnez Castle is specifically named for a local cafe, providing a perfect spot for refreshments during or after your hike. Many coastal towns and villages near the park also offer a variety of dining options.

What are the parking options for waterfall hikes in Coastal National Park?

Parking is generally available at popular trailheads and scenic viewpoints throughout Coastal National Park. Specific parking information can often be found on individual route descriptions on komoot. It's advisable to arrive early during peak seasons to secure a spot, especially for well-known waterfall access points.

Do I need permits for waterfall hiking in Coastal National Park?

Generally, permits are not required for hiking on public trails within Coastal National Park. However, it's always good practice to check for any specific local regulations or temporary restrictions, especially if you plan to visit protected areas or private land that may be adjacent to public trails.

What do other hikers enjoy most about hiking in Coastal National Park?

The trails in Coastal National Park are highly rated by the komoot community, with an average score of 4.9 stars from over 180 reviews. Hikers frequently praise the stunning coastal views, the dramatic cliff edges, and the varied terrain that offers a mix of easy, moderate, and difficult options. The presence of seasonal waterfalls adds an extra layer of natural beauty that is often highlighted.

How challenging are the waterfall hikes in Coastal National Park?

The waterfall hikes in Coastal National Park cater to a range of abilities. There are 7 easy routes, 5 moderate routes, and 4 difficult routes. The most challenging route, the Grosnez Castle Ruins – Plémont Bay loop from Jersey Airport, covers 16.8 miles and takes over 7 hours, featuring significant elevation changes. Easier options are much shorter and have less ascent.

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