Where is Red Door Tunnel?

Red Door Tunnel is in South-East England, United Kingdom (postcode DT5 2EG), in the parish of Portland.

How do I get to Red Door Tunnel?

The nearest railway station is Weymouth, about 9.6 km away. Drivers can use postcode DT5 2EG.

Is Red Door Tunnel a protected site?

Yes — Red Door Tunnel is part of the Isle of Portland SSSI Site of Special Scientific Interest.

Is Red Door Tunnel free to visit?

Yes, Red Door Tunnel is free to enter.

How do I get to Red Door Tunnel?

Drivers can navigate to postcode DT5 2EG. It sits within the South Dorset parliamentary constituency.

Caves · South West England

Red Door Tunnel

In or near Fortuneswell.

Free admission

Red Door Tunnel is a cave in the United Kingdom.

Plan your visit

Typical visit: 45 min–1.5 h
Nearest railway station: Weymouth · 9.6 km

Free entry
Dog-friendly

Red Door Tunnel is a named cave entrance in South-East England. The site is a designated Site of Special Scientific Interest. It sits within the South Dorset parliamentary constituency. The nearest railway station is Weymouth, about 9.6 km away. Postcode area DT5.

Photo gallery

Official information

The Red Door Tunnel, also known as Smugglers Cave, is a short man-made tunnel that provides access to a Victorian well that once served the dockyard. Visitors can explore a 23-meter tunnel and see a small stream during wet weather, making it a unique underground feature on Portland.

Protected designations

Site of Special Scientific Interest: Isle of Portland SSSI

Designations sourced from Natural England open data under OGL v3.

Place summary

The Red Door Tunnel is a cave located in Portland, South-East England. It is designated as a Site of Special Scientific Interest (SSSI) within the Isle of Portland SSSI.

AI-generated from the structured facts on this page (operator, designation, listing, era). Not a substitute for visiting.

Coordinates: 50.5307, -2.4364
District: Dorset
Parish: Portland
Postcode: DT5 2EG
Parliamentary constituency: South Dorset
Nearest railway station: Weymouth — 9.6 km
Official site: sites.google.com

Sources

osm: n11039427573 (ODbL)

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Mountains & hills · South West England

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Chapels · South West England

Southwell Methodist Chapel

Southwell Methodist Chapel — Grade II listed chapel in Portland, Dorset, England, UK.

Free↗ sites.google.com

Isle of Portland coastline - geograph.org.uk - 6955526

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Villages · South West England

Southwell

Southwell — a village in england south east.

Where to eat & stay near Red Door Tunnel

Places to stay

Portland, farm track - geograph.org.uk - 3704682

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Campsites · South West England

Sweet Hill Farm

Sweet Hill Farm — a campsite in england south east.

Free↗ sweethillfarm.co.uk

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Hotels · South West England

Portland Spa Hotel

Portland Spa Hotel — a hotel in england south east.

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Hostels · South West England

Young Men's Christian Association

Young Men's Christian Association — a hostel in england south east.

↗ portlandymca.org.uk

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Hotels · South West England

Royal Breakwater

Royal Breakwater — a hotel in england south east.

↗ the-royal-breakwater.dorsethotels.net

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Caravan parks · South West England

WPNSA Motorhome Area

WPNSA Motorhome Area — a caravan park in england south east.

Wyke Regis, holiday park - geograph.org.uk - 4144840

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Caravan parks · South West England

Chesil Holiday Park

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