I know we are not a travel forum, but Veg's info on South Africa went down well so I figured I should add that if you are considering visiting Seoul, then... you should Absolutely Go!
Not least as from the UK, like Aus, you are one of the 22 countries thats getting around the ETA system for this and next year :
www.k-eta.go.kr/portal/board/viewboarddetail.do?bbsSn=149899 <-- this saves the cost of the online 'visa', just like a USA ESTA. its not much but every little helps as a supermarket once said...
Anyway, why go?
Its really safe, just like Japan people leave things like mobile phones, laptops and handbags to save seats in food courts and coffee shops when they walk up to order. yes really. No one steals them.
Its really safe, even the really drunk people are happy drunks.
Its really safe, the metro is easy to use, well lit and the people are helpful not weird and avoid eye contact or oggle you with a leer.
Its really saf... oh you get the idea. lol
Its really easy to get around, the metro is easy to use and they have a card you get that you load money on. Its very simple to use but very complex. My advice is to get Naver maps app and use that with a Data Sim - about £20 for 10days. Google maps dont work there btw.
The food is amazing. If you like Asian food, you'll enjoy it. If you like Spicy food you can get it how you like, not dumbed down for westerners etc
Food ist that exy unless you want it to be (or you buy fruit... like Japan this is crazy money). Ordering is often done on screens and there is an ENG button or (sigh lol) an American flag to get words you can actually read/understand.
Beer is cheap, local is good too if you like lager. Soju (kind of like Sake, maybe) is not my thing, Makgeolli is a young brewed half way house between beer and soju in alcohol content that's a lot like fizzy milk and very very very cheap. Worth trying those, just to say you have, then go back to beer lol
The locals love to drink... often you enter a restaurant in a locals area and the blokes from work are staggering and waving their arms about in discussion, its like 15mins before closing on a Friday in the UK lol. The tables are chock full of empty bottles of all sorts or Makgeolli, beer and Soju. Its a happy experience tho in those places, no one bothers anyone else... and they serve fantastic food too. Oh and if you need anything you push a bell and a waitress appears, you only need to get up when you break the seal...
The city is pretty flat but does have some hills of course, but its easy enough to avoid them if you dont like walking up n down. It is really walkable tho and you defo should walk there... we averaged 18k steps a day.
Western Credit Cards work well there, well ours did... their cash is simple to understand if not and there are cash machines around.
Coffee is good-ish... not as good as Aus, but decent (In case you didnt know, Aussies are very fussy about coffee). ie better than America - but where isnt?! lol
Toilets are plentiful, unlike say France, Vietnam (which is Asian France as Im sure you know after all those years of colonialism) and others in the EU. They are also clean and very few are asian style, ie hole in ground. In fact everywhere had western loos and most of them are Japanese electronic style like robots if you know what they are like.
Airport is about 1 hour from the city and cheapest is also best to get into the city, all stops metro. Well signed and simple to get tix. Easy peasy.
Getting through customs was super quick. about 20mins with luggage collected! unlike say LA or Sydney which can take hours on a bad day... or the fast boat to Macau, yeah never ever do that...
Airport is decent when you fly out too, lots of eats and some are not rip offs. Lots of shops too, tho most are silly high end stuff. Who on earth buys a Louis bag or gets their name added to the Rolex wait list at an airport?!
Lots to see and do. Pretty decent war memorial with English texts and lots of food markets to explore. Youtube is full of youtubers with good info.
All in all... a great place to visit. Easier to travel around and less cultural rules to break than Japan, less dirt than China/Vietnam etc its almost as clean as Singapore etc.