Routes

Planner

Features

Updates

App

Login or Signup

Get the App

Login or Signup

Routes
Hiking trails & Routes
Netherlands
South Holland
Dordrecht

Helsluis – Mercurius Observatory loop from Sliedrecht

Routes
Hiking trails & Routes
Netherlands
South Holland
Dordrecht

Helsluis – Mercurius Observatory loop from Sliedrecht

Easy

4.5

(87)

501

hikers

Helsluis – Mercurius Observatory loop from Sliedrecht

01:52

7.41km

10m

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: October 22, 2025

Download GPX

Save

Move start point

Edit route

Navigate

Send to Phone

Waypoints

A

Start point

Parking

Get Directions

1

181 m

Brasserie Biezz

Highlight • Restaurant

nice bar/restaurant for lunch in the sun next to a lake

maps.app.goo.gl/heg6BTRSLBrbZW5z8

Tip by

2

628 m

View of the River and Willow Trees

Highlight • Viewpoint

Looking south from this location we saw 2 sea eagles today.

Translated by Google •

Tip by

3

2.14 km

Helsluis

Highlight • Bridge

Lock between Beneden Merwede and Helsloot.

Translated by Google •

Tip by

4

2.91 km

Beaver Activity Along the Canal

Highlight • Natural

I saw them, but are these beavers? And why there?

Translated by Google •

Tip by

5

3.83 km

Mercurius Observatory

Highlight • Monument

In the middle of the National Park De Biesbosch (near Dordrecht) lies the Mercurius observatory.

Translated by Google •

Tip by

6

6.18 km

Ecolodge in the Biesbosch National Park

Highlight • Rest Area

Can't get enough of it? You can spend the night in the wonderful silence of the Biesbosch in this Ecolodge.

Translated by Google •

Tip by

7

7.31 km

BeverBos Nature Trail

Highlight • Trail

Next to the Biesbosch Centre is the Beaver Forest. With a fun map and activities, you can explore the Beaver Forest and learn all about these large rodents.

Translated by Google •

Tip by

8

7.33 km

Klimbos Dordrecht

Highlight • Structure

At Klimbos Dordrecht, you can choose from 7 routes: 3 junior routes, the green route (up to 5 meters), the blue route (up to 7 meters), the red route (up …

Translated by Google •

Tip by

B

7.41 km

End point

Parking

Way Types & Surfaces

Way Types

3.33 km

2.89 km

1.16 km

< 100 m

Surfaces

3.09 km

1.62 km

1.27 km

601 m

570 m

262 m

Sign up to see more specific route details

Sign up for free

Elevation

Elevation

Sign up to see more specific route details

Sign up for free

Weather

Powered by AerisWeather

Today

Monday 3 November

13°C

12°C

0 %

If you start your activity now...

Max wind speed: 15.0 km/h

to get more detailed weather forecasts along your route

Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

Loading

Nearby routes

How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
Intermediate

4.6

1,653

Walk Jantjesplaat - National Park De Biesbosch

03:41h

14.6km

10m

How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
Intermediate

4.6

1,563

TeVoet Hiking Route Jantjesplaat and Deeneplaat - National Park De Biesbosch

03:38h

14.4km

10m

How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
Intermediate

4.0

1,295

Dutch Royal Touring Club (ANWB) route 'Where water wins from the land' – National Park De Biesbosch

02:29h

9.87km

10m

How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
Intermediate

4.6

950

Hiking route Brabantse Biesbosch - National Park De Biesbosch

04:47h

19.0km

20m

How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
Intermediate

4.5

586

Trees, heaths and castles in the ancient Mastbos

03:07h

12.4km

20m

How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
Easy

4.6

584

Shortened walk Jantjesplaat - National Park De Biesbosch

01:06h

4.38km

0m

How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
Easy

4.7

700

Hiking trail Roestelberg - National Park Loonse and Drunense Dunes

01:23h

5.48km

10m

How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
Easy

4.2

309

Walking across the Galderse Heide and the Vlonderpad

01:26h

5.66km

20m

How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
Intermediate

4.4

374

Zouweboezem – hiking off-the-beaten track in the Netherlands

02:50h

11.3km

10m

How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
Intermediate

4.5

295

Along fens, heaths and castles

03:50h

15.0km

50m

How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
Easy

4.5

356

The Jantjespad - National Park De Biesbosch

01:02h

4.14km

0m

How to understand each route’s difficulty level

Hiking

Bike

Mountain Bike

Road Bike

Running

Easy
Up to 2 hours and 1,000 ft. of elevation gain. Great for any fitness level.Easily-accessible paths. Suitable for all skill levels.
Corresponds approx.to SAC 1.
Intermediate
Up to 5 hours and 3,000 ft. of elevation gain. Requires good fitness.Mostly accessible paths. Sure-footedness required.
Corresponds approx. to SAC 2-3.
Expert
More than 5 hours long or 3000 ft. of elevation gain. Requires very good fitness.Sure-footedness, sturdy shoes and alpine experience required.
Corresponds approx. to SAC 4–6.
Technical difficulty rating based on the Swiss Alpine Club (SAC) Hiking Scale.
Easy

4.7

222

Walk Deeneplaat - National Park De Biesbosch

01:31h

6.07km

0m

Explore
RoutesRoute plannerFeaturesHikesMTB TrailsRoad cycling routesBikepacking
B2B
PartnersConnectEmbed routes
Company
PressWhat's NewPioneersProduct UpdatesAmbassadorsAdventure Hub
Community
Help GuidesSupportKomoot Treasure Hunt
Download the app
Follow Us on Socials

© komoot GmbH

Privacy Policy
Terms of Service
Community guidelines
Vulnerability disclosure program
Imprint
Information for law enforcement