Before you log on the website of this cache, you should find (have found) 2 other caches that have met de following requirements:
1. both caches should be found on the same date
2. make sure the coordinates at the top both cache pages are between 10 and 20 kilometres apart
3. both caches must be of the same type (only Traditional-, Multi-, Letterbox, Virtual-, Webcam-, Mystery-, Earth-, Wherigo caches and all Events count)