Inspired by the excitement of the US Open, Australian Open, and French Open tennis tournaments, we created the GC Open series. We’re thrilled that this concept has resonated with the community, and as of May 2024, several cachers have already added their own caches, with others showing interest.
Building on this success, we’ve decided to take the tennis theme a step further by introducing a new challenge modeled after the Grand Slam tournaments, where participants must win four Majors.
For our version, simply find four specific caches from the GC Open series: #01, #10, #20, and #30. Each of these caches contains a bonus code.
Once you’ve collected all four codes, merge them to form a 12-digit alphanumeric string. Enter this string into Certitude to get the final coordinates and additional hints.
Thanks to the cachers Blauwvinger and vidake for their excellent cooperation in creating this bonus cache.
For the Rules of this Open series and the current List of caches see the GC Open #01 listing.
Just in case, a local cacher will provide maintenance assistance.