Korean is mainly spoken here, but Jejudo has its own dialect that is quite different from the one you'd find outside of the island. English is very limited here, as is Mandarin, but you may read or hear it every now and then.
Jejudo uses the South Korean won. Approximately 1,136 South Korean won is equal to 1 USD. They use notes here equivalent to 1,000, 5,000, 10,000, and 50,000 won, and they have all rainbow printing on them. There are also coins that equal 10, 50, 100, and 500 won.
A 12 oz. bottle of water here is fairly cheap! You can get one for as low as around 500 won or more typically around 1,000 won. Either way, they are usually all under one USD.
My favorite meal was probably a bowl of pho I got from a restaurant near my hostel. I have only had pho back in the States, so the taste was fairly different here, and much better, too! It was very hearty, not too salty, and the noodles were perfectly soft.
