If you have children, you have been to zoos and theme parks1. If you have, especially when you are abroad, the Internet is your friend: getting an eagle-view of what's on store on location, knowing about bars, restaurants, picnic areas, and toilets in advance is invaluable. Not to mention the evenings of fun and anticipation that printing out a map where x marks the spot can offer, thanks to the magic of PDFs.

It is somewhat disappointing then that so many online presences are lacking, uninspiring and provide little information2. Examples are in the numbers, as they either don't tell you about special deals or they forget to point out where the facilities are, so useful approaches stand out. One of them is the way Gröna Lund, the tivoli park in Djurgârden, Stockholm, offers a quick and extremely clear view of what's available for your children if you visit. If you click the 'Attraktioner' link on the main navigation bar, you land in a page which offers this:

As you can see, it's a list of all the main attractions. Just above the list you can see radio boxes, and an invitation to Välj längd, to choose an height. Click on the Under 120cm radiobox and you get this:

which is the complete list of attractions available to children (and hence families) under one meter twenty centimeters tall. This is simple and straightforward, but invaluable.

1. 1. Children are not obviously mandatory to visit a zoo, but they help.
2. 2. To this extent, it is nice to know that Købnhavn Zoo is working with the FatDUX crew in the redesign of their web site.