what's inside: outdoor activities

Outdoor activities such as biking, climbing and hiking keep you active during the warmer months. Learn more about snow sports like bobsledding and the Iditarod to keep you moving this winter.

Air Sports

Hang gliding and skydiving gives you the freedom to soar through the air like a bird. Learn more about these extreme air sports. See more »

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Skydiving Quiz How Hang Gliding Works What was man's first attempt to fly? How Daredevils Work How Skydiving Works How Wingsuit Flying Works

Biking

Bicycles are more than a mode of transportation -- they're a lot of fun. From gears to gear ratios explore the mechanics of bicycles and mountain bikes. See more »

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How to Repair a Bicycle How Bicycles Work How Mountain Bikes Work

Climbing

Whether you are interested in rock climbing or scaling Mount Everest it requires strength and finesse. Learn about the different types and techniques of climbing. See more »

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Naked Sherpa Sets World Record How has Mount Everest tourism affected Nepal? How Spelunking Works How Rock Climbing Works How Climbing Mount Everest Works

Hiking

Hiking is an excellent way to stay fit and see the world. Discover how prepare for a hike ,including what to wear and pack. See more »

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How Letterboxing Works How Geocaching Works How to Hike How Gem Hunting Works How to Make and Repair Camping Equipment

Urban Sports

Urban sports can be described as unusual and are performed in busy urban settings. Discover dangerous sports such as BASE jumping and parkour. See more »

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Are there real-life fight clubs? How Parkour Works What are urban explorers? How Urban Gaming Works How BASE Jumping Works

Water Sports

Water sports vary from surfing and cave diving to kayaking. Learn more about water safety and the different types of equipment needed. See more »

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How Sailing Works How Scuba Works How Surfing Works How Kayaking Works Which is faster -- a kayak or a canoe? How White-water Rafting Works How Personal Watercraft Work How Cave Diving Works How Canoeing Works How Wakeboarding Works

Snow Sports

Snow sports are a great way to keep in shape during the winter months. Learn more about the Iditarod and Olympic sports such as biathlon and luge. See more »

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How Sled Dogs Work How North Pole Expeditions Work Iditarod Quiz How the Iditarod Works How Alpine Touring Works Are sled dogs a help or hindrance in the Alaskan wilderness? How Snowboarding Works How Luge Works How Ice Fishing Works How Snowmobiles Work