I had some fellow RVers up here in MN say Pioneer Park in Wellton AZ was a great place to spend the winter, weather was great,and very reasonable. I just had some people for neighbors for the weekend ...
Some, if not most, of the resorts in Yuma do have activities scheduled. Since we don't want to be 'organized' we stop there long enough to get supplies we need then go on to San Felipe ( Baja ). We get settled in and I go fishing or desert roaming and Ms. Donna does crafts, etc. Most days we walk the beach for 3 miles or so. For us, it doesn't get any better than that.