New challenges

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Hey, I'm looking for some new fitness ideas, things to try as a one of or things I can get into more regularly, up for anything!

A year ago I did nothing at all, I don't come from an active or sporty background.

However, I've since:
- taken up running and ran my first half marathon
- I took up snowboarding and went on my first week long boarding trip
- did the first 5 weeks of Insantity (before getting sick and stopping, I'm swaying about starting again or not, not sure it'll be as interesting the second time round)
- I've taken up pilates for days that i fon't feel as high impact
- I've been out surfing a few times, can't stand up, but loving trying!

I've found that I much prefer higher impact things than lower, I get bored with routine, and I need to see myself getting better at something to want to stick to it.

I'm totally open to ideas of trying new things, or learning about new challenges with the things I'm already doing. Sadly, whilst I've found enjoyment in fitness, few of my friends have, so it has to be things I can do on my own.

Is anyone doing anything exciting they want to inspire me with? :)