Win a family holiday to Denmark

Win:

A DFDS ferry crossing from Harwich to Esbjerg for 1 car inc 2 adults, 2 kids.
A one week stay in a holiday cottage (choice, approx value £1000)

How to Enter:

Here is the prize page at Lonely planet with entry form towards the bottom
One question - the answer is in the text.

Competition Closing Date:
2nd May