On a hot afternoon in the park, you need a picnic rug, a glass of cold wine and the perfect book to chill out with.

If you haven't read the book, you might be puzzled by a baby polar bear eating bananas.

Though you would be surprised at how many people asked me when I went to Antarctica a few years ago if I'd be seeing lots of polar bears and penguins.

I saw lots of penguins. But the polar bears must have been hiding in the banana trees.

That was a shame.

If it hadn't been such a good trip, I might have complained.