I am so sorry for those of you who didn't get in last night! We arrived about 3:15, and I was afraid we might not get in. We met Jane, and she was great in helping us try out assisted and self-rescue techniques. As far as alternate spots, I have put in on the Concord River before, but I don't know if the spot has enough parking and I don't know if the river is suitable for practicing rolls and rescues. As a backup plan, I had emailed someone at the AMC Boston Paddlers, because I saw on their web site that they have a practice session on a nearby pond at the same NSP does. Apparently there is a tiny parking lot but people are allowed to park at a nearby school within a 5-minute walk. If NSP wants to use that as a backup plan, it would probably be best to coordinate with the organizers at AMC so that we don't overcrowd their spot.