UGPM on the first section.. for the second section..
i think most of the country also applying same rules... cash limit of $10,000USD .. 

i bring total of RM1.3k Cash only (half change to won half to USD before going go Korea)
the rest i use credit card... the rate almost same RM--> Won money changer rate..
dark still okay la.. i not sure when u going la.. since i going at summer.. many of them like to camp there sit down around the park cook and eat ramen.. sembang sembang... some street performance as well... some cycling around... 

the park is juz right beside the bridge.. nah show u in google map

sorry.. i think i did some mistaken here...

banpo bridge is not the one i point at  ... but the location i point at got 2 ferry terminal, and ticket booth.. sit ferry until banpo bridge..

and Mkaz.. yes.. building 63 is on the A point...

more information: http://kimcheetimes.blogspot.com/2009/10/h...ferry-ride.html

I just back from seoul for a week........
1) dongdaemon- dozens of shopping mall specially for fashions
2) namdaemon- market place.. lots of local delicacy, craft, and market fashions
3) myeong dong- something like UK style... shoplot shopping...
4) gangnam- this place is like Bukti Bintang... damn lot of people and lots of food variety
5) itaewon- I stayed here... it is like bangsar... lots of abr/pub/clubs... and lots of ang mo
6) itaewon back allye market(go morning)- this place is like greece, where once back and dark alley is turn into a happening place of food and fashion street...
7) insadong- korean hand craft and local culture market
8) hanok village
9) war memorial museum-admission free(20min walk from itaewon)

for N-Tower, you can include teddy bear museum
for COEX, can include aquarium

there are lot of oen day trip tour available.. ranging from 50,000Won to 100,000won... lots of activity....

for staying at the islanad of incheon, there are night tour available for free

enjoy

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Added on August 24, 2012, 12:10 pm
if you intend to play, I would say one whole day.... yes from 8am to 10pm....

i was at everland alone and with my daughter, i cant play a lot of stuff, just snap picture and at safari park... the took few ride, and mind you last week was not holiday season and there are not much people... this alone took me 6hours at everland alone, exclude carribean bay

P/S take bus no 5002 from gangnam station