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You buy a booklet online for £10, it sets you a murder mystery that takes you walking round Dunoon while solving clues.
120-acre estate managed by the Royal Botanic Gardens of Edinburgh, you enter through a towering avenue of 150-year-old redwoods. RBGE have placed many of their Chinese and Himalayan collections here, where the climate suits, and the rhododendrons are rampant in early summer. Wear sturdy shoes.