You do not need to be a member to go on the rides. It is very hard to get into the hiking or paddling trips, but is a little easier for cycling. This summer there is an easy ride series on Tuesday nights; but I think next week is the last one. Go on the web site, find the Boston chapter's area and then go to the bike committee page. There is a monthly calendar you can click on, with rides. Also, the "Intro" committee leads rides that are usually more relaxed and some of them are in very nice places. Not sure of your age, but the over 40 group leads rides, too and they also have an area on the chapter site.