Did I miss something?

I am going to Tiree in March - and there is an orienteering race close to Oban and the day before the ferry departs - serendipity - so I entered promptly (because they may need to restrict numbers), entries have been open for 2 days - and it is still only me on the list.

Did I miss something? - the area looks nice on the map but perhaps there is some hidden unpleasantness.