Mauna Kea – the world’s tallest mountain

At 10,000m from its oceanic base to the peak, Mauna Kea is the world’s tallest mountain. It provides an arduous high-altitude hike over barren volcanic terrain, where the numbers look straightforward but the lack of oxygen adds a considerable challenge. There’s a high chance of experiencing snow in Hawai’i (and an altitude headache!)

Ben Macdui from Linn of Dee

A long walk in and out along the beautiful Glen Lui, followed by a high-level walk taking in 3 Munros, including the second highest peak on the British Isles, Ben Macdui. Views into the Lairigh Gru make for an excellent morning, with Ben Macdui achievable before lunch. Easy navigation in good conditions. Don’t bother in…