Routes

Planner

Features

Updates

App

Get the App

Routes

Hiking trails & Routes

Down

Castlewellan

Slievenaslat Peak & Castlewellan Castle loop

Routes

Hiking trails & Routes

Down

Castlewellan

Slievenaslat Peak & Castlewellan Castle loop

Moderate

4.5

(2)

hikers

Slievenaslat Peak & Castlewellan Castle loop

02:17

7.81km

220m

Hiking

Embark on the Slievenaslat Peak & Castlewellan Castle loop, a moderate hike spanning 4.9 miles (7.8 km) with an elevation gain of 725 feet (221 metres), typically completed in 2 hours and 17 minutes. This trail offers a rewarding experience through attractive mixed woodland, featuring sustained steep climbs and descents…

Last updated: April 23, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Mourne AONB

Waypoints

Start point

Parking

Get Directions

2.36 km

Slievenaslat Summit

Highlight • Summit

Gorgeous view of the Mourne Mountains and surrounding area. Right beside The Mountain Lake.

Tip by

5.10 km

Moorish Tower (Castlewellan Lake Viewpoint)

Highlight • Viewpoint

A small tower overlooking Castlewellan Lake.

Tip by

7.30 km

View of Castlewellan Castle

Highlight • Castle

Lovely looking castle surrounded by a lake and lots of trails for walking and cycling. Unfortunately, the castle is not open to the public and swimming is not allowed in the lake (fishing and boats are fine).

Tip by

7.81 km

End point

Parking

Way Types & Surfaces

Way Types

4.83 km

1.77 km

1.18 km

Surfaces

5.05 km

1.23 km

1.03 km

297 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (260 m)

Lowest point (120 m)

Weather

Tuesday 5 May

11°C

3°C

16 %

Additional weather tips

Max wind speed: 14.0 km/h

to get more detailed weather forecasts along your route

This route was planned by komoot.

Navigate

Send to Phone

Save

Edit route

Download GPX

Move start point

Embed on a website

Report an Issue

Nearby routes

Moderate

4.8

1,218

Glen River Trail

04:43h

9.88km

810m

Moderate

4.6

416

Ott Track to Doan Mountain

02:04h

6.85km

230m

Moderate

4.7

364

Hare's Gap & Slieve Bearnagh from Trassey Car Park — Mourne

03:21h

9.64km

510m

Easy

4.8

357

Tollymore Forest River Trail — Mourne

01:41h

6.08km

110m

Moderate

4.9

265

Hare's Gap & Slieve Commedagh loop from Trassey Car Park — Mourne

04:38h

14.0km

640m

Easy

4.1

292

Lakeside Walk

01:09h

4.46km

30m

Moderate

4.7

191

Tollymore Forest Park – Mountain and Drinns Trail

04:09h

14.3km

370m

Moderate

4.8

194

Slieve Donard via Bloody Bridge

03:55h

9.74km

800m

Hard

5.0

150

The Devil's Coach Road via Cove Mountain — Mourne

04:56h

14.9km

600m

Moderate

4.8

159

Slieve Commedagh and Glen River Loop

04:19h

10.5km

740m

Moderate

4.9

172

Blue Lough from Carrick Little

02:17h

8.06km

180m

Moderate

4.8

111

Slieve Loughshannagh, Meelbeg and Meelmore loop — Mourne

03:10h

9.39km

490m

Slievenaslat Peak & Castlewellan Castle loop

Slievenaslat Summit

Moorish Tower (Castlewellan Lake Viewpoint)

View of Castlewellan Castle

Nearby routes

Sign up or log in to keep exploring this route

We value your privacy ⛰️

We value your privacy ⛰️