Along the way you'll find microbiology, and systems analysis, but you'll also find Sherlock Holmes, chocolate and Star Trek. There are SIGs for breadmaking, winemaking, cartooning, silversmithing, and clowning. Heraldry, semantics and Egyptology co-exist with beekeeping, motorcycling and tap dancing. And any Mensan who can't find a SIG to join can easily start one. All with fellow members who share your intellectual interests.
Some groups have special get-togethers or activities throughout the month.
Others, especially the larger groups, have events on practically every day. Of course, participation in local group activities is always entirely at your option. There's also widely attended annual conventions offering workshops, seminars, and parties. Plus, numerous regional gatherings are held each year, offering social and intellectual excitement. In some countries you will get lively local newsletters informing members of local activities and events, and other items of interest and announcements of special interest.