Many Mensa chapters put on occasional weekend-long parties, called Regional Gatherings. MWM is no exception. Ones we have had in the recent past include:
(we didn't have one in 20
Pandemic RG: Catch the Fun! (site no longer up)
Pandemic 2020: Around the World (canceled due to actual pandemic around the world)
Pandemic 2021: FREEDOM! (canceled due to continuation of said pandemic)
You can usually find the current one at http://mwmrg.org/.