*Calorie calculator guide:
http://www.myfitnesspal.com/exercise/calories-burned
Reference :
Physical exercise through mountain hiking in high-risk suicide patients. A randomized crossover trial|Sturm J, Plöderl M, Fartacek C, Kralovec K, Neunhäuserer D, Niederseer D, Hitzl W, Niebauer J, Schiepek G, Fartacek R.| Suicide Prevention Research Program, Paracelsus Medical University Salzburg, Austria Perceived psychosocial benefits associated with perceived restorative potential of wilderness river-rafting trips |Garg, R., Couture, R.T., Ogryzlo,T., et al. Department of Pyschology, University Sudbury, Ontario, Canada. www.pnas.corg (Proceedings of the National Academy of Sciences)
http://www.collective-evolution.com
Center for Biotechnology Information
U.S. National Library of Medicine
http://www.nhs.uk/livewell/fitness
www.theguardian.com
www.vertical-adventure.com
www.rockclimbing.com
www.lonely planet.com
http://thesmartlocal.com/read/hiking-trails
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