Rafting on Aragvi river can be done by everyone from age of 10 without prior experience. Difficulty level isn't too high especially in summer but still heart thrilling experience, more extreme in May-June. Experienced instructors follow rafts, you just listen their simple commands and paddle. All necessary equipment will be provided on a place as well. Rafts are for max 8 pax, those experienced can try kayaks.
Who wishes horse riding, prior riding experience advisable. You must strictly follow commands of instructors. Due to safety concerns, those who know nothing but pretend they are talented horse riders and will not follow guide, will be removed from the tour, without compensation, have hard experience, that's why want to mention.
So nothing dangerous to eat Khinkali, just again watch your guide how to eat properly, otherwise it's messy food, you will spill all fatty liquid on your clothes.