HKOC World Orienteering Day “Photo PreO” Game

IOF held the 3rd “World Orienteering Day” on 23rd to 29th May. HKOC supported for 3 consecutive years, held multiple orienteering events on that day, including “Photo PreO”.

Rules of “Photo PreO”: Participants see a photo, with multiple flags (the leftmost is A, next is B, etc.), and need to answer which flag is the control on the map. There is no Z answer in the game, the control must be placed at a flag.

The following is an explanation:


This year’s activity has 25 question, ended at 29th May 2018, 23:59 Hong Kong Time. The organiser has already published the answers and result. 187 people participated this year, decreased by 14% compared to last year. 12 participants got all 25 questions correct, including 1 from Hong Kong.

Although the activity has ended, the training questions are still open, interested participants can go for practice.

Thank for Mr Akune Li and Hong Kong Orienteering Club for designing “Photo PreO” game.


To facilitate the development of trail orienteering (TrailO) in Hong Kong, this site was established in December 2017, providing one-stop information about the sport of trail orienteering in Hong Kong.

This site will contain a few pages, including medallists list, Hong Kong Team member list, introduction to trail orienteering, etc. In the long term, event calendar and photo-O game may be added.

From 2018 there will be world ranking events in TrailO like the other three disciplines, but with different scoring scheme. Also, Hong Kong will hold the 1st Asian Trail Orienteering Championships (AsTOC) in 2019, and hold the World Trail Orienteering Championships (WTOC) in 2020, which will be a WTOC held outside Europe again after it was held in 2005 in Japan. This site will update with relevant information then.