Routes

Planner

Features

Updates

App

Login or Signup

Get the App

Login or Signup

Login or Signup

Routes
Road cycling routes
United Kingdom
Wales
North Wales
Gwynedd
Penrhyndeudraeth

The Cob Causeway – Porthmadog Harbour loop from Penrhyndeudraeth

Routes
Road cycling routes
United Kingdom
Wales
North Wales
Gwynedd
Penrhyndeudraeth

The Cob Causeway – Porthmadog Harbour loop from Penrhyndeudraeth

Moderate

17

riders

The Cob Causeway – Porthmadog Harbour loop from Penrhyndeudraeth

01:29

30.6km

310m

Road cycling

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride. The starting point of the route is accessible with public transport.

Last updated: May 27, 2026

Tips

Includes a segment in which cycling is not permitted

After 5.36 km for 191 m

Waypoints

A

Start point

Train Station

Get Directions

1

161 m

Penrhyndeudraeth

Highlight • Settlement

Penrhyndeudraeth, which means 'the headland of two beaches' in Welsh, is a serene small town that's well located for hiking adventures in some of Northern Eryri's less frequented ranges. There …

Tip by

2

362 m

Millennium Park

Highlight (Segment) • Rest Area

3

4.12 km

The Cob Causeway

Highlight (Segment) • Bridge

This mile-long causeway crosses River Glaslyn as it reaches the estuary. Opened in 1811, this causeway carries the Ffestiniog Railway as well as an A road and a cycle path. …

Tip by

4

5.53 km

Porthmadog Harbour Railway Station

Highlight • Structure

The current stone buildings date from 1878/79 and replace earlier wooden buildings that had been dismantled and reused elsewhere on the railway. The goods shed was added in 1880. In …

Translated by Google •

Tip by

5

5.65 km

Porthmadog Harbour

Highlight • Settlement

The marina is important to the city and remains a vibrant, vibrant center of activity. Porthmadog has an attractive harbor and attracts sailors and pleasure boaters from all over Europe …

Translated by Google •

Tip by

6

5.93 km

Porthmadog Harbour Town

Highlight • Viewpoint

Porthmadog is simply a busy hub, a gateway to the Llyn Peninsula and Snowdonia National Park. It is a lovely harbour town with a gorgeous mountain backdrop. It also has …

Tip by

7

24.9 km

Glaslyn Ospreys

Highlight • Viewpoint

A pair of ospreys have been breeding in the Glaslyn Valley since 2004. The RSPB operated the first observation center at Pont Croesor from 2005 until a group of local …

Translated by Google •

Tip by

8

25.1 km

Glaslyn Osprey Project Viewing Centre

Highlight • Viewpoint

Bywyd Gwyllt Glaslyn Wildlife (BGGW) is a Registered Charity (1172496) that is managing The Glaslyn Osprey Project at Prenteg near Porthmadog in Gwynedd.
A pair of Ospreys has been breeding …

Tip by

B

30.6 km

End point

Train Station

Loading

Way Types & Surfaces

Way Types

15.7 km

12.4 km

1.70 km

443 m

195 m

< 100 m

< 100 m

Surfaces

25.0 km

5.37 km

< 100 m

< 100 m

< 100 m

< 100 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 (110 m)

Lowest point (0 m)

Sign up to see more specific route details

Sign up for free

Weather

Powered by Foreca

Friday 10 July

30°C

14°C

0 %

Additional weather tips

Max wind speed: 11.0 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.

Navigate

Send to Phone

Save

Edit route

Download GPX

Move start point

Print

Share

Embed on a website

Report an Issue

Report restricted access

Nearby routes

Moderate

4.6

331

Glyders, Ogwen Valley & Llanberis Pass loop from Bethesda — Snowdonia National Park

02:30h

49.3km

720m

Hard

4.8

213

Pen y Pass and Marchlyn Mawr climb loop from Llanberis

02:57h

54.6km

1,000m

Hard

4.4

228

Sychnant Pass and Conwy Valley Loop from Bethesda

03:31h

70.5km

1,010m

Hard

5.0

204

Brailsford Way loop from Caernarfon — Snowdonia National Park

03:40h

74.7km

910m

Hard

5.0

168

Snowdon Circuit

04:40h

91.6km

1,220m

Hard

115

Caernarfon from Betws-y-Coed loop — Parc Cenedlaethol Eryri / Snowdonia National Park

05:27h

107km

1,430m

Moderate

4.0

112

Tour of the Llŷn Peninsula

04:06h

73.3km

800m

Hard

114

Blaenau Ffestiniog, Beddgelert and Capel Curig Loop

04:20h

80.6km

1,290m

Moderate

5.0

99

Drws y Coed from Caernarfon loop — Parc Cenedlaethol Eryri / Snowdonia National Park

01:40h

37.1km

400m

Hard

5.0

66

A loop of three llyns from Trawsfynydd

03:32h

64.9km

1,020m

Hard

31

A loop around the Rhinog mountains — Snowdonia National Park

04:25h

81.1km

1,290m

Easy

39

Pont Aberglaslyn & the Causeway loop from Porthmadog — Snowdonia National Park

01:07h

24.9km

180m

Explore
RoutesRoute plannerFeaturesHikesMTB TrailsRoad cycling routesBikepackingSitemap
B2B
PartnersConnectEmbed routes
Company
PressWhat's NewPioneersProduct UpdatesAmbassadorsAdventure HubCareers
Community
Help GuidesSupportGPX Merge ToolGPX Route VideoHazard AssessmentLive Tracking
Download the app
Follow Us on Socials

© komoot GmbH

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