[masraum]

It doesn't from your description sound like it's too bad, so that's a plus.

How much does the kayak weigh? Is all of your stuff attached to it when you move it? How long is it?

Yes, core exercises sound like the way to go.

I suspect most of us aren't ready for this, but there are some videos on youtube of some of the ab/core/back exercised done by the folks at cirque du soleil.

https://www.youtube.com/results?search_query=cirque+soleil+abs