Are you adventurous? Do you participate in any extreme sports(cliff diving, surfing, hang gliding....?)

not at all, i dont want to break my neck

No, but I would like to learn how to surf.
I've never even seen a person surf in real life being from Canada.
I kinda think I might like it.
I can skateboard, I can swim and I can paddle.
Would that help me any?

I used to surf and probably still could after a few outings to practice and get my arm strength back.  I wouldn't call it very extreme though.  It's not very risky.  If you fall down, you just fall into the water.  You can't really get hurt.  SCUBA diving is more dangerous and I was a PADI dive instructor for a short time.  It's more dangerous AND more exciting!

Scuba ,Driving like a lunatic around tracks .....quading and off road dirt bikes....I've not done any fir around four years though....:(

Hot air ballooning, skydiving and whitewater rafting.

Sorry - not outside the bedroom. 

I won't even drive on the freeway.

According to Wikipedia,
motorcycle racing is an extreme sport and I used to do that.

No, unless you count caving as an "extreme sport" but cavers don't claim it is. It's a pursuit, not a "sport", anyway.

I don't really recognise the term "extreme sports" but lets have some fun with it........

Caving and hill-walking are neither "extreme" nor "sports" unless you an insurance-assessor, as though there are a few specialists, to most of that breed (out of Access by Excel), anything not in the right database cell is uninsurable as:

    potentially fatal  /  bad  /  wrong  /  might harm the foetus  /  non-existent  /  never-heard-of-'ere-Guv  /  implicated in bad humours of the spleen and the common cold  /  frightens us  /  doesn't frighten us but puzzles us  /  takes us effort to learn about it!

Or unless...

You work for Sport England (a quango allegedly encouraging public competitive-sports participation) and then anything more physical and game-minded than watching soccer on telly is a Sport so needs:

    a standard pitch  /  development officer  /  deputy-sub-committee to organise committee meetings  /  dedicated parking-places for all the Hon Committee members  /  Governing Body to tell people not to park on the Hon Secretary's reserved place  /  league tables  /  disciplinary hearings (for parking on ....)  /   sponsors' T-shirts  /  audited returns and full risk-assessments for the tea-stall  /  full third-party and life insurance for all members (see above  /  training in safe erection of "Reserved" signs in the Club car-park  /  certificates of competency in polishing balls and making tea  /  director of communications (oh sorry, not a D of C - they are for shy, tongue-tied politicians) / ...  

errr, is there anyone left actually to perform the pursuits, just for fun?   

The most extreme I do is the gym.  My extreme days are over.