Subterranea Britannica Site Visit

On Saturday 24th September we had a visit from Subbrit who spent a day with us in Harwich. The morning was shared between the Harwich RDF Tower and Harwich Redoubt before a well earned lunch break.

The afternoon saw us all in Beacon Hill Battery looking round the many structures that have survived from late Victorian, 1901, WWI and WWII. The battery retained its weapons right up until 1956 when it was finally stood down with the cessation of Coastal Defence.

Beacon Hill Battery will remain open throughout the winter every Saturday and Sunday between 10am and 4pm. This will be dependent on weather so please check availability before setting out if travelling from some distance away.

Some positive feedback received at the RDF Tower:

Zamojoa Family: Not expected at all !!! 🙂

G Ward: A lot more to see than I expected. The Harwich ‘Tardis’

Webb Family: A well kept secret ! Interesting

We have two more open days this year, Sunday 9th and Sunday 23rd October between 11am and 3pm. Free admission but donations welcome, hope to see you there 🙂


Heritage Weekend 2022

Following the sad passing of Her Majesty the Queen, the decision was made to continue with the heritage weekend, but keep it low key. The bunting was not put up, and Union Flags were flown at half mast when appropriate. A steady stream of visitors attended on both days despite the changeable weather Saturday. A total of 115 visitors from far and wide including Germany, Portugal and even Sydney, Australia.

Becky and Sean Very interesting. Good to see it open. Was great to learn about Harwich history and it’s relationship with WWII.

Don V. Interesting

James, Jane and Cormac (5) Very interesting Didn’t realise they had to manually push the aerial!

Our next open day is Sunday 25th September between 11am and 3pm.

Rest In Peace your Majesty, Long live the King


Our first years open days: 2021-2022

On June 27th 2021, we opened our doors for the first time following a major refurb and we haven’t been disappointed with the response. As of June 26th this year, we have met 873 visitors during 20 open days, an average of 43.6 guests per day. We would like to thank all those who have visited over the past year.

Rob & Sue: “very good” thank you

Tadana & Derrick: Very interesting

Dave & Sandra: Interesting

We will be opening again on Sunday 24th July between 11am and 3pm. We also have a two day event in September when we open the doors for the Heritage Weekend event on Saturday 10th and Sunday 11th, again between 11am and 3pm each day. Hope to see you there 🙂


Much drier open day: Sunday 12th June

Was nice to be able to sit in the sunshine to welcome visitors outside yesterday. A steady flow of visitors from the time we opened the gate until we closed, 41 in all. Coventry was the furthest this week, followed closely by Northampton and a lot of interesting questions. Still receiving positive feedback too:

Bernard O: Wonderful effort

Richard P: Fantastic exhibits

Christina P: Great! Well done

Still adding small bits each week, trying to build up a picture of what life would have been like serving in the RDF Tower. Been an interesting project so far and looking forward to opening again on Sunday 26th June between 11am and 3pm – Admission free, Donations welcome 🙂


Very wet Sunday: 29th May

A big thank you to all those who braved the weather this weekend and came to visit us at the Radar Tower. With four huge downpours between 11am and 3pm we were amazed that we had 38 guests. Some interesting questions and positive feedback.

Sarah S: Excellent-V. Detailed History of The Site

Yates Family: Very Interesting

Claire C: Surprising place, so much bigger than I imagined. Wonderfully restored

Once again we are looking forward to our nest open day on Sunday 12th June between 11am and 3pm. Hopefully it will be a bit drier 🙂