Obviously winter is a low season. Durning my visit to Gyeongiu last October I did not see any tour groups. I suggest that you check out the avalability of (English) tours in the time frame you plan to go. A tour group serves a good purpose. You get to see more places with guidance and you don't have to worry about transportation. At the Ancient Tomb Complex on a weekend it was very difficult to find a cab to get back to downtown. I still have a Gyeongiu map (a bit worn). I can mail it to you if you want it. However this map is in English. As I pointed out most Koreans do not speak English.

You need to ask the company. I waa booked for a second different tour, but because they only had my reservation, they asked if I wanted to pay for a solo private tour which was double the cost. I declined. If they haven’t contacted you re: this, then perhaps you are okay. However, to be certain, you need to check with them.

Around 4:30/5:00, if I correctly recall. You're not rushed on the tour, and go to an excellent Korean buffet lunch where you can try a lot of different Korean dishes, some that I have never seen at a luncheon (I'm Korean American). I don't remember the name of my guide, but he was great.

I was a solo traveler. They let me book and then said it may be canceled if other travelers do not join. Other travelers didn't join, so I paid as if there were 2 people since I still wanted to go on the tour.

I took the Busan day tour last spring. The tour was pretty flexible within the pre-programmed schedule, and the Gamechon culture village was a part of the tour.

The tour will start at 8 or 9 am so u won’t be able to get from Seoul to busan by Ktx before the day starts