2N3D Seoul Itinerary with all major spots in Seoul

This is a 2N3D Seoul Itinerary which is included all major tourism spots in Seoul.
I planned this for a foreign friend's visit to Seoul and thought like it might be helpful to someone who is planning to visit Seoul.

I've considered about travel time between every destinations on this plan.
This looks bit tight, but wanted visit the places in Seoul as many as possible in 3 days.
and for 4th Day, we've headed to Nami Island. you can also add extra 1~2 days for the destinations out of Seoul.

This itinerary include the places below.

1st Day
Myeongdong, Namsan(N Seoul Tower), Dongdaemun, Cheonggyecheon

2nd Day
Gwanghwamun, Gyeongbokgung Palace, Insa-dong, Bukchon Hanok Village, Hongdae, Hypermarket( Lottemart, E-mart)

3rd Day
Lotte world, Gangnam, Sinsa-dong Garosu-gil

Link to download the PDF file. http://goo.gl/c7ZA8t