Keep up the beer and chips intake for energy

Agreed

My thoughts on exercise, if you are not a committed exerciser then doing all those simulated kiteboarding exercises is going to bore you to death. Once you get past the "it looks like kiteboarding so it must be good" all you're doing is standing around pulling on something. I guarantee you will be looking at your watch after 2 minutes wondering when you can take a break to do something more interesting.

My prescription is, do something. Do anything. It doesn't matter what you do as long as you do something.

The easiest to do is go for a brisk walk. Once you're out you have to complete the circuit or turn around. Do it every day. Do it even when you don't feel like it.

If you can, add in some variations. Find a hill to walk up. Do it a few times. My missus does the stairs and ramps on the local beach promenade.

If there's piles of rocks on your local beach then scramble over them.

Try adding in some weight. Shopping bags are good.

You can also ride a bike. Crappy bikes are arguably better for exercise than good ones. Slower and not as much fun, but they make you work harder.

Really slow running is good. Just don't stop once you get moving.

While I think of it, I had probably my best workout in ages yesterday. Do a few reps of the following:
- try to go kiting in dead onshore, too light winds.
- fight the shore break to get into water deep enough to water start.
- try to water start without ripping out your fins.
- repeat for 3-4 reps.
- get going and get out into deeper water.
- gybe and then struggle to keep your kite in the air
- figure 8 the kite until you get to the beach
- run back up the beach carrying a heavy board
- add in the occasional sprint when your too big kite decides to try and drop out of the sky
- get bonus points for scrambling over the rock groyne without crashing everything