It depends on how badly you wish to join the hobby. I find club websites poorly maintained, the volunteers (instructors, contact people and such) come and go with no updates on the web site. I just spent the month of July vacationing in Newfoundland and attempted to contact all dozen or so clubs on the island. Even though I visited most of the clubs I was only able to make actual contact with two and flew at only one. I started attempting to contact each club a month in advance of my trip. Like has been suggested, look at the web site and find which day of the week and time they have set aside as beginners night. If they don't have one then Saturday and Sunday weather permitting would be the best chance to run into someone at the field. If there is contact phone numbers try them but they might not be up to date either. Most likely the guys you run into at the field are going to make up a small percentage of the club membership. These are the guys you need to make contact with but they might not be on the contact list visiting the club field or meeting is the most likely way to introduce yourself. You will be pleasantly surprised how friendly and welcoming this group can be.

Dennis