My parents will be visiting Turkey and spending 2-3 days in Cappadocia in April. Ideally, since they are a bit older (60s/70s years old) and not the trekking around type, they'd like to take a tour in addition to doing a hot air balloon ride. I've heard that the red and green tours are the most popular. Does anyone recommend either one in addition to how to go about booking a balloon ride for them? Is it a must to book in advance or is it more advisable to book these tours/balloon ride upon arrival? Also, I've heard that one could reasonably spend a couple days just in Göreme - is this more advisable for a trip that's 2 days vs. trying to jam-pack a bunch of towns into such a short trip?
Appreciate any helpful tips!