Very Hot in Europe

It is very hot to be picking sour cherries in Hungary. I finally got to use my calling card and talk to my only surviving aunt, who is 87  yrs old. She burried a son 5 or so years ago, and asked me how I am coping with the loss of Deborah. I told her it is not something you can cope with, but instead continue to live despite our loss. I am for the first time seriously considering going for a visit to my birthplace. I had 32 first cousins when I left the country in 1970. My home is calling me back in a way, just like I am now reconnecting with a friend from almost 40 years ago. How is this all possible? My aunt is listening to a faith station of which she is very greateful, but is unable to walk as she needs knee surgery. She is unlikely to go for surgery, but she is continually praising God for sustaining her and loving her. How long would I last picking cherries in this heat? Would I go in the off season, or in season time of the year? Do I need a new passport or visa? Would my children want to come, so we can share of this experience together?