The world's 10 best nature walks around big cities
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There’s no more eco-friendly way to explore a city than to pound the streets, and walking tours have become so popular that many cities offer endless themed routes to keep the tourists on their toes. From ambling the length of the Thames to clambering to the heights of Table Mountain, or trekking from coast to coast in an afternoon, these 10 cities offer incredible walking routes that marry urban backdrops with stunning natural scenery.