Caravanning by bicycle?

These days lots of folk are trying to be more "green" - lower their carbon footprint, live sustainably, etc. etc.
We all like our holidays (especially us Europeans who seem to get twice as much vacation time as most Americans - don't blame me, because you voted for the folks that made it so, not me!), so how can we combine our increasing environmental awareness with some much needed time away from the office and the home?

Here's an idea for you!

My best gas mileage yet!

My best "hypermiling" trip yet!
A trip to the airport returns 76 mpg!
- that's about 63 mpg (US), 3.7 l/100km.
Anyone can achieve a great mileage over a short distance

• I could, for example, go to the top of a hill near here, reset the fuel computer, then drive down the hill and claim great gas mileage!!
• but I will not!

What really matters is what gas mileage you get for a "real journey", and for a round trip, so that headwind/tailwind uphill/downhill effects do not skew the result.

My automobile computer readout after the airport run 

The trip was far from optimum for hypermiling, but I did what I could.