SM6009 : East side of Grassholm

Grassholm Island

42m Elevation
42m Prominence
Wales Country
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SM6009 : East side of Grassholm

Hugh Venables Photo source

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Route planning notes

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Boat trip from Tenby

The main access to Grassholm Island is via boat trips from Tenby. The route offers stunning coastal views and opportunities to spot marine wildlife.

14 km ~1.5 hours Moderate
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Hill facts and local notes

Classifications

0-99m hill SIB

Elevation

42m

138 ft

Prominence

42m

Coordinates

51.7303, -5.4789

SM598093

OS Map

157

Explorer: OL36W

At the Summit

Grassholm is mostly flat and adorned with thick vegetation and native seabirds. No formal summit features like cairns or trig points exist.

Terrain & Geology

Grassy and rocky with sparse vegetation dominated by seabirds making it distinct from traditional hiking terrains.

Grassholm Island is primarily composed of volcanic rock, specifically basalt, with significant deposits of sedimentary rocks, which reveal a fascinating geological history influenced by past volcanic activity.

Views & Scenery

Panoramic views of the Pembrokeshire coastline and the surrounding sea, dotted with other small islands, offer a picturesque landscape.

History & Heritage

Name Origin

The name Grassholm is derived from the Welsh 'Grug hodol', meaning 'heather clad', reflecting its natural vegetation.

Historical Significance

Grassholm is known for its large population of seabirds, particularly gannets, and is considered an important site for wildlife conservation.

Getting There & Facilities

Parking

Parking is available in Tenby, Pembrokeshire, at several car parks within walking distance of the harbour.

Public Transport

Regular bus services run to Tenby from nearby towns. Check timetables as services may vary seasonally.

Nearby Facilities

Facilities in Tenby include cafes, restaurants, and toilets, with no services on Grassholm Island itself.

Safety Information

Known Hazards

  • Strong tides can pose a risk for boat excursions. Always ensure that conditions are suitable before attempting to visit.

General Safety Tips

  • Check weather conditions before setting out
  • Carry appropriate clothing and equipment
  • Let someone know your planned route
  • Take a map, compass, and GPS device
  • Carry emergency supplies: food, water, first aid kit, torch

Hills

Some common questions about the hills answered

Are there group walks up Grassholm Island?

Many walkers use Walkmates to join or organise walks with others. You can check for group walks around Grassholm Island through the maps

Are there other walkers around Grassholm Island?

Activity varies by location and time, but Walkmates lets you see whether others have shared walks or shown interest in this area. Find other people through the walking friends search walking friends for Grassholm Island search or of course create your own walk for Grassholm Island

Can I organise a walk to Grassholm Island?

Yes. If there aren’t any walks listed already, you can create a walk and make it available for others to join.

If you're signed up to Walkmates, you can create a walk to Grassholm Island.

How do I find a walk up this hill?

There are often multiple ways to walk this hill, depending on experience and route preference. Walkmates helps you explore walks and routes that others have shared.

Can I suggest a new route up Grassholm Island?

Yes. You can suggest or create routes to share with others. Walkmates focuses on the social side of walking, so routes are used to help people organise walks and explore areas together, rather than as detailed navigation tools or route libraries.

Other uses really appreciate knowledgeable walkers sharing their routes. Share your favourite route to Grassholm Island here

The is an error or something incorrect about this hill. How do I let you know?

We always strive to keep the information on Walkmates as accurate as possible. If you find an error, please let us know through the contact form and we'll aim to correct it as quickly as possible

Location

View the hill's mapped position and surrounding paths.

Grid reference: SM598093

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