A MEGA EVENT is a very large event that requires more than 500 people attending, and it spans over more than a day (typically). There are usually fun-filled activities and it is an opportunity to meet geocachers from far and wide. A Mega also has its own Event Icon, so it is a much sought after event cache to "attend".

South Africa hosted its very first Mega Event in October 2012 at the Voortrekker Monument in Pretoria. It was a resounding success and geocachers from around the country and the world came together to enjoy three days of fun, caching and comraderie. The second Mega Event took place in October 2014 at Giba Gorge MTB Park just outside Durban. This was a fantastic event, packed full of sub-events, awesome caches and loads of prizes.  The third South African Mega Event was in October 2016 in Cape Town, and was an adventure filled weekend with cachers from all over the world descending on the mother city.