Unlike their mountain-climbing counterparts, ice climbers are in constant danger of causing a self-inflicted stab wound from one of their razor-sharp crampons (their No. 1 source of injury). Not to mention the possibility that the ice you are climbing will crack and take you down with it.

Broken collarbones and legs, paralysis, blindness — even death — are potential results for those who indulge in extreme sports. While most of us are acutely aware of our mortality and try not to push the envelope, some of us seek out activities for the adrenaline rush it brings. We looked for the most popular extreme sports that could put your life insurance application in a free fall.

The insurance industry calls these "hazardous avocations," explains Kim McKeown, spokesperson for the Society of Actuaries (SOA). "If an insurer learns that a new client’s hobby is jumping out of airplanes or body boarding down a Class V rapid, there is a strong potential for raising your rates or deciding not to cover you altogether."

Wave goodbye to good rates

Jack Dewald, chair of the Life and Health Insurance Foundation for Education, a nonprofit, says that a person is most likely to be declined when their sport becomes too extreme.

"Scuba diving in depths over 200 feet could get you declined, since this is extremely risky. Also, if a student pilot just took up flying, more than likely he or she will be declined as well," he says. "Most other activities like big game hunting, flying an ultra light aircraft, or skydiving would add $2 to $10 per $1,000 in coverage in extra surcharges for a life insurance policy. It really depends on how risky the sport is."

Remember the Matrix — jumping from roof to roof at maximum speed? Look, Ma . . . no ropes, no parachute, no insurance. Free running is practiced in urban areas that feature lots of railings and concrete walls for participants to jump, flip and tumble over in an acrobatic fashion.

However, once you have secured a life insurance policy, your life insurer can’t raise your rates until renewal time and they can’t cancel your policy after the "contestability period," which is generally two years. During the contestability period, your insurer has the right to cancel your policy if it finds out you neglected to mention a dangerous hobby when you applied.

If you start your dangerous sport after you have a secured a policy, your life insurer cannot cancel you because you did not misrepresent anything when you applied.

"If they had the policy for a year and they take up skydiving and kill themselves, the company still has to pay," says Kevin Coughlin, an impaired-risk specialist with Target Insurance Services, Inc. in Overland Park, Kan.

Playing it safe

Dewald recommends being honest with your life insurance company about your extreme sports hobby, and be prepared to pay a higher premium.

"Typically insurers use an Informal Inquiry Form [UC 0401P] for people who might fall under the category of impaired risk or if there is a question regarding insurability on other risks that are not standard," he says.

Remember when you were a kid and you wanted to be Batman?BASE jumpers sometimes wear a "wingsuit" that aids them in jumping off a cliff, a cellular tower, the Golden Gate Bridge and even the 1,381-foot Petronas Twin Towers in Kuala Lumpur, Malaysia. (BASE stands for the main objects from which one jumps: building, antenna, span or earth.) Unfortunately, your newly acquired flying skills will not keep you from landing in the slammer: Base-jumping is illegal in the U.S., unless it’s being performed by a professional at an event.

Want to feel like 007? In true Bond fashion, a skier can pay to be dropped onto fresh white powder in a remote section of Colorado or Alaska via a helicopter. There’s a possibility of starting an avalanche or falling through an ice patch. The cost starts at $500 and goes up depending on the difficulty in getting you to your destination.

Dewald adds the most common reason life insurers deny a death claim is because of "material misrepresentation" on an insurance application.

"You don’t want to get into a situation where there is a potential for a denied claim based on an omission that was found on the special questionnaire," Dewald says. "If you die in an extreme sport accident, the people who are going to be hurt the most are your loved ones. It’s not a risk you should take."

If your employer provides a group life policy, no one in the group can be excluded because of an extreme sport.

Get the best rates, without giving up your sport

1. Get serious about your sport. Take safety-training and certification courses. Training from a credible professional company may reduce your life insurance rate. Also, purchase highly-rated safety equipment and tell your insurer; this also helps lower your premium.

2. Limit how often you engage in your extreme sport and let your insurer know you do it on a limited basis.

Loosely described, this is the equivalent of lying on your skateboard and having your friend push you down Lombard Street in San Francisco. Riders on street luge boards can reach 70 mph.

3. If you don’t want to pay an extra surcharge for your high-risk life insurance, work out a deal with your insurer where you will be covered for any fatal event except your extreme sport.

4. Shop around for insurance and see who covers your activity and provides the best deal.

Want more ways to get insurance? Read 8 ways to find life insurance when you’re "uninsurable."

How much will it cost me?

Here are samples of extra annual premiums per $1,000 of face amount coverage. Below, "standard" refers to paying a standard rate that is pricier than "preferred" customers who have less risk.

There isn’t a dedicated surfer alive who hasn’t thought about what it would be like to surf on a Tsunami. While other "swish" (meek or fearful) surfers stick with waves that are a couple of feet high, the big-wave surfers are dedicated to 50-foot-high water thrills.

How about jumping off a 90-foot cliff above water? It's possible you could: A.) Hit the side of the cliff before you hit the water; B.) Slam against the shallow ocean shelf below you; C.) Break a hip or incurring spinal chord injury by landing feet first in the water; D.) Die of a heart attack on the way down.

Auto demolition: Standard
Drag Racing: $7.50
Balloonists: Standard to $3.50
Boxers - Amateur: Standard to $5
Hang Gliders and Ultra Light (Powered Hang Glider): $3.50 to Decline
Mountain Climbers - Lower 48 United States: $0-$3.50
Mountain Climbers - Elsewhere : $5 & Up
Motorcycle Racing: Standard to $10
Rodeo - Amateur: Standard
Skiers: Standard
Scuba Divers diving in open water to:
75 feet or less: Standard
76 to 100 feet: $0-$2.50
101 to 130 feet: $2.50-$5
131 to 150 feet: $3.50-$5
More than 150 feet: Decline
Amateur skydiving affiliated with parachute club:
1 to 50 jumps per year: $3
51-100 jumps per year: $5
101-200 jumps per year: $7.50
201 or more jumps per year: $10 & up
BASE jumping: Decline
Snowmobile racing: $2.50-$3.50
Spelunkers (cave exploration): Standard
Surfers: Standard
Ultralight aircraft: 2.50-$5