Banner 6Banner 20Banner 16Banner 9filming at seaBanner 63marine film servicesBanner 65


Square Sail has been involved in the film industry for over 30 years, providing ships, a period harbour location, maritime facilities and services.  With our expertise and experience we can offer the total package of marine film services for any and all requirements.

Our tall ship Phoenix is able to sail worldwide to any location.  The period, square-rigged vessel replicates an 18th Century Brig of War but can also be converted to represent different types of ships – anything from a Whaler to a Spanish Galleon.  We can also provide, source or build virtually any other vessel required for a production – from period long boats to Greek war ships and everything in between!

Square Sail’s Harbour at Charlestown is not only a perfect location for filming port scenes (arrivals, departures, loading etc) but the inner harbour is a marine film tank with controlled water levels allowing for filming 24/7.

Additionally, our Company can supply green screen backgrounds; marine co-ordination; safety boat services; camera boats; safety divers; props; riggers; set and studio builds.

Phoenix is also available to attend Festivals and for corporate charter.

Whatever your nautical or maritime requirements Square Sail Ventures can assist.

Marine Support Green screen Ship conversion

Charlestown Harbour dockside to open to the public

Charlestown harbour open to the public

For the first time in its 225 year history we are proud to open Charlestown harbour's working dockside to the public. Locals and holiday makers alike love to visit our beautiful Georgian harbour and watch the daily action of a working port, with vessel arrivals and maintenance in action. The permission for visitors to experience the dockside will be a welcome addition to the already scenic environment of Charlestown that attracts so many.


The Historic Port of Charlestown Co.

The Historic Port of Charlestown Co. experience will be launched on 18th April by a shared event day with our neighbours at the Shipwreck Centre. Live music and the arrival of the trading vessel ‘Greyhound’ will all be taking place in the harbour on the morning of 18th.

Visitors are welcome to join and visit from 10 - 5 on tues 18th. 

More launching over the next 2 months

The Historic Port of Charlestown Co. experience includes an old dockside trading post complete with paraphernalia of a historic port. Cannons and barrels will be part of the historic port experience around the end wall of the inner harbour, an area little used in the past. 

 A new vessel especially for the experience arrives into Charlestown port within the next few weeks. The Kajsamoor is trading ketch that will open its decks and hatches for visitors to explore on and below decks. (For tuesday’s event the Charlestown favourite ‘Phoenix’ will step in for Kajsamoor which has been delayed due to bad weather.

 A fully rigged mast that sailing and rigging enthusiasts can try their hand at ropehandling is being erected on the harbourside. Come down to feature in your Poldark selfie!

Over the next few months , the experience will grow with exhibition pieces that outline the history of the harbour and its workings. We know this will enhance the understanding of Charlestown and its place in Cornwall’s vibrant history. 

 Film work continues

 The film work will continue at Charlestown - there is space for all! We continue to work closely with production companies, on location, at sea on the Phoenix and within the harbour. The more than 100m length of the quay affords ample space for shooting, green screen facilities and film tank work.

 For full details on pricings and opening times of The Historic Port of Charlestown Co. visit

 Please remember that it is deep water in the harbour itself and ensure children are under parental supervision at all times, you enter at own risk, but you will have an amazing time!

 The Historic Port of Charlestown Co. Facebook










We had an wonderful two days at the Location Guide's Focus event - great networking opportunities and good to also reconnect with companies we have worked with in the past.  Thank you to all those who took the time to talk with us and visit our stand - please get in touch if you need any further information or have any projects/ideas you wish to discuss.



Location Guide Focus Event London

Please come and see us on Stand L28 at this brilliant event!!!

6/7 Dec | Business Design Centre London

Three weeks to go until  FOCUS 2016, where you can meet with over 150 film commissions, location providers and service companies from 55 countries. Get up to speed on the latest global filming incentives and production support. In our UK Village, you'll find Creative England, Creative Scotland, Northern Ireland Screen and many film offices and location providers from around the UK.

REGISTER NOW for your FREE delegate badge.



The Location Guide Focus Event in London

We are extremely pleased to announce that Square Sail will be exhibiting at this year's Location Guide Focus Event in London on 6th and 7th December.  The two day event showcases filming locations from all over the world, with UK and international exhibitors.  The event will be held at the Business Design Centre, London N1 0QH.

It is exciting to be promoting at this event, with our wonderful period harbour and tall ship, our experience, expertise, services and facilities, we are able to offer a complete package to production companies. 

If you live in the London area, please come along and visit us at Stand L28 in the ‘UK Village’ portion of the venue. For more information on the event, visit:



The Launch of The Poppy Appeal for Cornwall 2016

The Poppy Appeal in Cornwall will this year be launched from the Phoenix at Charlestown Harbour on 27th October. We are honoured to be able to provide our ship as a venue for this incredibly important British Legion Charity and to promote the Cornwall 2016 launch.


New website

Square Sail Ventures Limited is proud to present our new look, refreshed website.  With the Company having been under new ownership since 2015, we felt the time was right to bring our website up to date.  Our aim is to not only showcase our existing skills, expertise, services and facilities, which have made Square Sail a leading marine provider in the film and television industry, but also to raise awareness of the exciting innovations taking place within our Company.

We now provide an extensive green screen service at our harbour and are expanding the uses and range of our marine film tank facility at Charlestown.  The beautiful tall ship Phoenix remains our 'jewel in the crown' and our future plans see her becoming busier than ever.

In addition to everything we at Square Sail can provide, the affiliation we now enjoy with our new owner Shane McCarthy's other company, Atlantic Production Limited, means that we can provide staging and sets for events throughout the world.  

The future is looking very bright for Square Sail!





Feature in Cornwall living

 We are really proud to have Shane feature in a recent article in Cornwall Living on what the area has to offer as filming locations. Shane was interviewed by the magazine on Square Sail's involvement in the filming of Poldark and what Charlestown can provide production companies looking for marine film services and chroma key facilities.

cornwall living/caught on camera

Read the entire article here 'Caught on Camera', Cornwall Living.






Sailing through Tower Bridge

film launch on ThamesAs part of the London launch of Warner's 'In the Heart of the Sea' ThePhoenix and crew took a special trip down the Thames and through Tower Bridge. We welcomed on board actor Chris Hemsworth and director Ron Howard for the journey. It was a pleasure to have them back on board for the first time since the filming in the Canary Islands.

As part of the film launch, The Phoenix proudly displayed footage from the film on her square sails. Our event crew rigged the two 70kg projectors on the bow of the ship with spectacular results for all to see.



New ownership

Square Sail is now under the ownership of Square Sail Ventures Ltd.  The change of ownership will not affect any of the services and facilities Square Sail has always offered and all the present staff, skilled shipwrights and ship’s crew will remain with the Company.  However, in addition to the wonderful harbour at Charlestown, the beautiful tall ship ‘Phoenix’ and our existing skills and expertise we will now be able to offer film and television productions additional, expanded services including staging; a comprehensive selection of props and (as part of our set construction department) set design and scenic painting. 

 st. austell voice/oct 2015

Head of Square Sail Ventures is Shane McCarthy who also owns Atlantic Production Ltd which has been operating for over 20 years and offers a wide range of services from set design and staging to innovative large scale temporary structures.  Atlantic Production Ltd has become a market leader in the production of live events and temporary venues.


Shane said: “I am absolutely delighted to be the new owner of Square Sail which is an iconic and world-renowned business.  The filming and production aspects of Square Sail represent a great fit with Atlantic Production - I am excited to be taking the business forward.”

 new ownership of Charlestown Harbour

‘Tall Ship Phoenix at Guernsey’. Footage by kind permission of Crowd Media Limited (