chefcycle: "I'm taking my two year old up to the bwca this year for the first time and I was wondering if anyone knows of a good site, or facebook group or place to buy and sell gently used kids camping gear. I will do some renting of gear until she's a size where I can buy some more permanent stuff but I'm looking for a way to save some money while she is still growing. "
The only specialized gear I can imagine you'd need would be a Life jacket. I'd suggest getting this new.