Many people spoke English next the tourist shops and restaurants. However, most people only spoke Korean.
Jeju and Busan use the same currency as the rest of South Korean, the Korean won (KRW).
A bottle of water usually costs 1000 KRW, which is the equivalent of 76 U.S. cents.
The best meal I had was crab cakes at a restaurant in Udo, a small city off the coast of Jeju that we visited. The appetizer was a dish of fresh peanuts that are grown locally!
I listened to a lot of classical musical on the bus rides across Jeju island and on the plane to Busan.
The most fun activity was walking over the glass boardwalk along the Busan coast. It was so cool to see the ocean right beneath me! We then went on a hike up the mountain next to the beach and got to see a beautiful sunset over the ocean.
I brought a poetry book with me!