Routes

Planner

Features

Updates

App

Login or Signup

Get the App

Login or Signup

Routes
Hiking trails & Routes
United Kingdom
Scotland
Lothian
Kirknewton

Harperrig Reservoir – Cairns Castle Ruins loop from Cairns Castle

Routes
Hiking trails & Routes
United Kingdom
Scotland
Lothian
Kirknewton

Harperrig Reservoir – Cairns Castle Ruins loop from Cairns Castle

Moderate

5.0

(1)

7

hikers

Harperrig Reservoir – Cairns Castle Ruins loop from Cairns Castle

02:52

10.4km

170m

Hiking

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: May 26, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Pentland Hills Regional Park

Waypoints

A

Start point

Parking

Get Directions

1

5.18 km

Cauldstane Slap

Highlight • Mountain Pass

2

8.71 km

Harperrig Reservoir

Highlight • Natural

Harperrig Reservoir was created in 1860 as part of a scheme to create a safe and reliable supply of drinking water for Edinburgh. The dam was raised in 1890 to …

Tip by

3

10.0 km

Cairns Castle Ruins

Highlight • Historical Site

Cool castle, track around south side of reservoir is rough but doable with some questing!

Tip by

B

10.4 km

End point

Parking

Loading

Way Types & Surfaces

Way Types

8.18 km

2.04 km

191 m

Surfaces

7.85 km

1.00 km

653 m

520 m

385 m

Sign up to see more specific route details

Sign up for free

Elevation

Elevation

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

Highest point (430 m)

Lowest point (270 m)

Sign up to see more specific route details

Sign up for free

Weather

Powered by Foreca

Friday 26 June

21°C

14°C

61 %

Additional weather tips

Max wind speed: 29.0 km/h

to get more detailed weather forecasts along your route

Comments

guide_signup

Want to know more?

Sign up for a free komoot account to join the conversation.

Sign up for free

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

Save

Edit route

Download GPX

Move start point

Print

Share

Embed on a website

Report an Issue

Report restricted access

Nearby routes

Moderate

4.8

989

Carnethy Hill & Scald Law loop from Flotterstone — Pentland Hills

04:43h

13.0km

500m

Explore
RoutesRoute plannerFeaturesHikesMTB TrailsRoad cycling routesBikepackingSitemap
Download the app
Follow Us on Socials

© komoot GmbH

Privacy Policy