You can orienteer anytime you wish using the permanent course at Woodridge Park. Print your own map, practice without any timing or results. Great to introduce friends to the sport; or get some more practice for yourself.
Orienteering is found all over the world, and you can go to most events! For a list of local events across the US, check out the Attackpoint map. Also, check out Orienteering USA's National Events Calendar. For events around the world, start with the International Orienteering Federation and look for a specific country.