The UNESCO listed ‘Heart of Neolithic Orkney World Heritage Site’ consists of four well-preserved Neolithic sites on Mainland, each in use roughly 5,000 years ago and now protected by Historic Scotland.
• Skara Brae – Opening times vary across the year: from 1st April to 30th September, the site is open Monday to Sunday, 9.30am to 5.30pm. Then, from 1st October to 31st March, it is open Monday to Sunday, 10am to 4pm. An adult ticket to see Skara Brae (not including Skaill House) costs £6.10.
• Maeshowe Chambered Cairn – At the time of writing, Maeshowe can only be visited by guided tour; these depart from Skara Brae at 10am, 12pm, and 2pm. Adult tickets cost £5.50 and can only be bought at Skara Brae on the day of the tour.
• The Standing Stones of Stenness
– Open all year, free entry.
• The Ring of Brodgar – Open all year, free entry. Unstan Chambered Cairn, on Mainland, is also maintained by Historic Scotland. It is open all year, and entry is free.
The Tomb of the Eagles can be found on the island of South Ronaldsay. Opening times vary across the year: in March, it is open from 10am to 12pm; from April to September, 9.30am to 5.30pm; in October, 9.30am to 12.30pm; and it is only open by arrangement from November to February. In 2016, an adult ticket cost £7.50.