See demonstrations of how to bake oatcakes and bere bannocks. Find out how to make Orkney butter and cheese. Learn what to do with sowans, and how to use wild foods – and meat from local native breeds of sheep. It’s organised by the newly formed Orkney Traditional Food Group, whose members’ backgrounds range from cooking and sourcing to archaeology and history.

Airborne dust from Mount Hekla’s 1845 eruption is said to have given Orkney’s potatoes a fine flavour. Could rock dust improve soil quality and help crops today? Growers in Orkney, the Black Isle and Moray have produced tatties in trial areas, with and without addition of dust provided by Orkney's Cursiter Quarry. Hospitality students in UHI Orkney’s training restaurant will serve them for you to taste-test.

Join the European Marine Energy Centre (EMEC) at its annual Science Festival open day for a series of ocean energy talks, hosted at EMEC’s main office in Stromness. Learn about innovative projects harnessing the power from Orkney’s seas, monitoring the environment and wildlife, storing power as green hydrogen, and the creation of e-fuels to decarbonise aviation.

Join members and friends of the Heriot-Watt diving team for more of its 60-year story. They look back at past highlights, review ongoing work, and describe other developments in Orkney that have emerged from the diving activity. Prof. Joanne Porter, Prof. Bill Sanderson and Prof. Hamish Mair are joined by Dr Siti NurTahirah Jaafar and local divers – with some refreshments and an anniversary cake to cut.

Due to ongoing work at the Hoy Kirk this event has been held over to next year's programme. For anyone who has already booked the ferry, Orkney Ferries are able to offer refunds. As long as you cancel at least one hour before a sailing departs, they are able to give a full refund. Cancellations can be made by email, phone or on their website if you have booked online.

It’s a great sight on Broad Street in front of the Cathedral, with vintage vehicles, classic cars and tractors; and all beautifully restored. You can hear the sound of engines in action, and the stories of how vehicles, sometimes gently rusting away over long years, have through much love and skill been brought back to immaculate condition. Members of Orkney Vintage Club look forward to welcoming you.

Join in an afternoon of singing with tutor Irene Watt, accompanied by the Mearns Singers. “Singing is a wonderful catalyst for improving health and wellbeing,” she says. “Come and learn how to sing in harmony and benefit from this joyous experience.” The workshop includes tea/coffee and biscuits.

Tom Muir welcomes you in one of Orkney’s most historic buildings to hear of stories from a distant past. Shonaleigh Cumbers grew up in a family tradition which has passed on a series of 4,000 mythological stories gathered together in the Netherlands several centuries ago and not written down anywhere. Dr Simon Heywood speaks on the Arthurian legend and references to Orkney contained in it.

Kirkwall City Pipe Band on Broad Street with their final parade of the season.

Conducted by the Rev. Norman Whyte, with the St Magnus Cathedral Choir. “Whether you come from north or south, east or west, whether you live here or are a visitor, are here for the first time, or are here regularly … you are welcome to our worship.”

Come along to see the work in progress on studying the marine life that has built up around the little island during its months in the harbour. Local marine scientists will be on hand to help explain what's there, among them Dr Karen Boswarva from Seasearch Scotland and Dr Jenni Kakkonen from OIC's Harbours Department. The various finds will be placed on view in plastic tanks.

The Mearns Singers (conductor Irene Watt) are a community choir from the land between the Grampians and the east coast of Scotland, a landscape of rolling fertile farmland, with coastal villages with a fishing tradition. One of their songs is based on Sunset Song, while others come from the sea, among them the Unst Boat Song and Partans in his Creel, and there are songs from other lands as well.

The case for meadows is made by food writer Wendy Barrie and her husband Bosse Dahlgren, a regenerative farmer with a deep interest in biodiversity. “Natural unfertilised meadows,” they say, “produce everything you need for a healthy life and sustainable business. By feeding animals meadow hay you bring in micro-minerals and fertiliser to your land.”

Take the 10 am ferry to Graemsay and enjoy a rather special day on the island, with a natural history walk and lunch and stories of the sea – and welcome the arrival of the drone that now carries the mail from Stromness, providing the UK’s first full time drone delivery service. The ferry goes via Moaness so you’ll see more of the Hoy coast on the way.

A day of marine workshops you can choose from, which will let you see some more of the town as well. There’s a marine life colonisation lab session at Heriot-Watt University’s Robert Rendall Building at 11.30 am, a Plankton Creative Workshop at Stromness Museum at 2 pm, and a Plankton Dip at the Pole Star Pier at 3.30 pm.

Visit the moor at Hobbister where Highland Park cut their peats, and find out about peat bogs and how they are formed, and about what can be done to restore them. The visit will be led by Lewis Robertson of UHI who is managing a current peat management project for the distillery. Its aim is to reduce peat usage at the distillery while developing restoration techniques for shallow peat.

For would-be and why-not dancers of all ages, with the Craig Mainland Dance Band with Craig (accordion), Sinclair Taylor (drums), and Alice Mainland (piano). Musical guests will include Andy Munro and his daughter Flora with a song or two, and Twa Folk (Irene Watt and Graham White, clarsach, bouzouki, harmonica and bodhran). Ticket includes refreshments and supper.