QNHG, like most clubs here, gives events info to members only. This isn't being awkward, it's just normal security.
The club, as its name implies, is for people who are interested in the natural side of Qatar, so they do field trips, rambles, talks and occasional foreign trips. To find out more, come along on Wednesday, or use the contact info in Marhaba.
Or, seeing I really am a nice guy, email me at [email protected], and I'll send you a membership form.