Beneath Edinburgh’s South Bridge lie a network of 18th-century chambers known as the Underground Vaults. Originally used for storage by bridge merchants, these damp, lightless spaces later descended into slums, illicit taverns, and hideouts for criminals and body snatchers. A one-hour guided tour will lead you through this spooky labyrinth, with costumed guides sharing dark tales of the city’s past inhabitants, from the desperate poor to the infamous Burke and Hare body snatchers. For daredevils seeking a stronger thrill, the same operator offers themed variations. These include ghost tours focusing on paranormal activity, tales of persecution and witchcraft, or visits to a nearby cemetery, often incorporating displays of historical torture devices.

In 1996, American artist James Turrell designed the Celestial Vault to showcase the sky in all its glory using an innovative astronomical optical illusion. In the centre of this grassy artificial crater, there is a stone bench on which visitors can lie to observe the sky as a curved dome, emphasising the way light affects how we perceive things and inviting those willing to challenge their own perceptions.

Skytop Lodge's Adventure Center offers a variety of outdoor activities for all ages and skill levels. Challenge yourself on the Treetop Adventure Course and zip lines, engage in friendly competition with paintball or arrow tag, or enjoy the thrill of downhill skiing and snow tubing. After a day of adventure, relax and unwind at the Skytop Lodge, featuring a golf course, spa, tennis courts, pools, dining options, and events.

Be prepared to have your mind bent, blown and rewired as you walk into the Lange Voorhout Palace where the illusory work of famous graphic artist M.C. Escher is exhibited. The palace is home to such legendary Escher paintings as 'Air and Water' in which birds are blended into fish and 'Waterfall' in which water appears to flow upwards instead of down. There are interactive experiences on the second floor, dedicated to the Eye of Escher where guests are encouraged to solve some of Escher’s most perplexing mysteries, including the impossible Penrose Triangle. On the third floor, there is a large-scale optical illusion where adults can appear to be children and vice versa. Audio tours and guided tours are available and there are additional temporary exhibitions taking place on occasion.