Forest walking is better for your health than urban walking for cardiovascular and metabolic health according to Japanese research http://www.hphpcentral.com/article/where-you-walk-matters
Original Paper: Qing Li; Toshiaki Otsuka; Maiko Kobayashi; Yoko Wakayama; Hirofumi Inagaki; Masao Katsumata; Yukiyo Hirata; YingJi Li; Kimiko Hirata; Takako Shimizu; Hiroko Suzuki; Tomoyuki Kawada; Takahide Kagawa Acute effects of walking in forest environments on cardiovascular and metabolic parameters European Journal of Applied Physiology (November 2011), 111 (11), pg. 2845-2853
From Phil Smith:
The book takes the form of a documentary-fictional collection of the internal documents, diary fragments, letters, emails, narratives, notebooks and handbooks of a loose coalition of performers, ‘alternative’ walkers, artists and lay geographers. All Illustrated in full colour by Tony Weaver, who designed the Wrights & Sites’ Mis-Guide books.
The fragmentary and slippery format recognises the disparate, loosely interwoven and rapidly evolving uses of walking today: as performance, as exploration, as urban resistance, as activism, as an ambulatory practice of geography, as meditation, as post-tourism, as dissident mapping, as subversion of and rejoicing in the everyday. 'Mythogeography' celebrates that interweaving, its contradictions and complementarities, and is an attempt at a handbook for those who want to be part of it.
And there's a website too, which pushes it all a little bit further and that's here - www.mythogeography.com