Silent Valley Reservoir in the heart of the Mourne Mountains is one of the most beautiful places in Northern Ireland.

Situated in the Mourne Mountains AONB near Kilkeel, Silent Valley Reservoir not only supplies most of the water for County Down and Belfast, but it is also a beautiful spot to visit.

Nestled in the heart of the Mournes between Slieve Binnian and Slieve Muck, Silent Valley lives up to its name as one of the most peaceful and tranquil spots in County Down.

Damiano 🇮🇹

August 18, 2025

Hiking

Silent Valley Reservoir, nestled in the Mourne Mountains, is a peaceful retreat surrounded by sweeping granite peaks and heathered slopes. Built in the early 20th century to supply water to Belfast and much of County Down, the reservoir combines striking engineering with natural beauty. Visitors can stroll along well-kept paths, admire the Victorian-style dam and impressive Mourne Wall, or simply enjoy the quiet atmosphere by the lakeshore.

🅰️H🍀

September 25, 2022

Cycling

[Google translation may change URLs]

Northern Ireland Water Ltd. (Silent Valley, 2022-11-01):
niwater.com/silent-valley
“… This year, 2022, marks the one-hundredth anniversary of the completion of the Mourne Wall construction ...”

Wikipedia (Silent Valley Reservoir, 2022-09-25):
en.m.wikipedia.org/wiki/Silent_Valley_Reservoir
de.m.wikipedia.org/wiki/Silent_Valley_Reservoir
Wikipedia (Bell-mouth spillway, 2022-11-01):
en.m.wikipedia.org/wiki/Spillway
de.m.wikipedia.org/wiki/Hochwasserentlastung

YouTube (Drone Video, RODPIKER DRONES UK, 2022-09-25):

Routes here

Best Hikes to Silent Valley Reservoir

5.0

(1)

hikers

1. Mourne Wall Challenge — Mourne

34.7km

12:53

2,220m

2,230m

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

Navigate

Send to Phone

Save

Hard

5.0

(1)

hikers

2. Slieve Binnian & Wee Binnian loop from Silent Valley Reservoir — Mourne

15.8km

05:19

740m

750m

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

Navigate

Send to Phone

Save

Hard

4.4

(10)

175

hikers

3. Silent Valley Duck Pond – Silent Valley Reservoir loop from Attical

10.4km

02:45

100m

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

Navigate

Send to Phone

Save

Moderate

Details

Informations

Elevation 30 m

Weather

Today

Thursday 29 January

6°C

3°C

70 %

Additional weather tips

Max wind speed: 40.0 km/h

Most visited during

January

February

March

April

May

June

July

August

September

October

November

December

See routes here

Take Me There

Add komoot as a preferred source in your Google results

Add now

Location: Carrigenagh Upper, Newry And Mourne, Northern Ireland, United Kingdom

Other Popular Places to Check Out

Silent Valley Duck Pond

Slieve Bearnagh

The Mourne Wall

Sandy Beach on Lough Shanna

Slieve Donard Summit

Mourne Wall

Bloody Bridge River Walk

Black Castles of Slieve Binnian

Slieve Doan

Carn Mountain Summit Ruins

View of Newcastle and Dundrum Bay

Silent Valley Reservoir

1. Mourne Wall Challenge — Mourne

2. Slieve Binnian & Wee Binnian loop from Silent Valley Reservoir — Mourne

3. Silent Valley Duck Pond – Silent Valley Reservoir loop from Attical

Other Popular Places to Check Out

We value your privacy ⛰️

We value your privacy ⛰️