Essentials

Andean Trails (0131 467 7086; andeantrails. co.uk) offers a

16-day trip, including the Huayhuash circuit, from

£1,888pp, including all in-country transport,

airport transfers, accommodation, tour guides, cook, meals and park entrance fees. Flights to Lima with KLM (020

7660 0293; klm.co.uk) cost from £582 return, with one transfer