Dewstow Gardens & Grottoes
  • Dewstow Gardens & Grottoes
  • Dewstow Gardens & Grottoes
  • Dewstow Gardens & Grottoes
  • Will and Lyra 'His Dark Materials' filming
  • Dewstow Gardens lake

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Discover Dewstow Gardens and Grottoes, a lost garden with tunnels and underground grottoes buried under thousands of tons of soil for over 50 years. The gardens contain many ponds and rills inside a labyrinth of underground grottoes, tunnels and sunken ferneries. The rock gardens are made up of a mixture of real stone and faced stone using various types of Pulhamite. The approximate 7 acre garden is magical for all ages.

Dewstow Gardens were created around the turn of the century by James Pulham & Sons landscapers, Rock Builders and Garden Designers. The gardens had been buried around the 1940s and 50s and after excavation, although some areas were in very poor condition, other parts remained as good as the day the gardens were built. Most of the repairs have now been completed during a massive restoration operation which began in 2000.

For any fans of "His Dark Materials" (the books and the series), you can now walk in the footsteps of Will and Lyra at Dewstow Gardens & Grottoes where a couple of scenes, including "the bench scene" were filmed at Dewstow Gardens & Grottoes for series 2.

Book Tickets

Guide Prices

2022 Pricing

Adults: £8.00
Children 11-18yrs: £5.00
Concessions: £7.00
Children 6-10yrs £3.00
Kids aged 5 and under: FREE

Family Ticket (2 adults and 2 children) £24
Season Ticket: £25
Family Season Ticket: £50

Group bookings -- Must be pre-booked
Group bookings (10 minimum) can be arranged on most dates Monday to Sunday and are charged at the concessionary rate of £6.50 per person.


Dewstow Gardens & GrottoesGroup Visits to Dewstow Gardens and Grottoes, ChepstowA magical & wondrous place to visit by groups. One of the most exciting horticultural finds of recent years has been the underground Edwardian gardens at Dewstow House in Monmouthshire.



  • Disabled access
  • Disabled toilets

Booking & Payment Details

  • Credit cards accepted (no fee)
  • Credit cards accepted (with charge)


  • On-site catering
  • On-site light refreshments
  • Picnic site


  • Baby changing facilities
  • Children welcome


  • Facilities for groups


  • Free Parking

Property Facilities

  • Dogs not accepted (except guidedogs)
  • Public toilets

Site Features

  • Regional Tourist Board Member

Target Markets

  • Accepts groups
  • Coach parties accepted

Map & Directions

Road Directions

Please see our website for details nearest railway station is Severn Tunnel Junction, which is 2 miles away.

Dewstow Gardens and Grottoes


Caerwent, Caldicot, Monmouthshire, NP26 5AH
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Call direct on:

Tel01291 431020

Opening Times

Season (27 Apr 2024 - 29 Sept 2024)
Monday - Sunday10:00 - 16:00
Bank Holiday10:00 - 16:00

* 2024 Season

Daily from Saturday 27th April until Sunday 29th September.

from 10.00am until last entry at 3.30pm

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