Looks like walking on Mars. Haha.
Jeju island is a volcanic island so it's landscape is covered with basalt. Whenever I visit to this island I feel like I am facing an another planet with a little bit of exaggeration. By the way I read every comment on my postings and I feel sorry that I can not answer to each of them. Thanks a lot for all of your support and I will try to write in English from now on. Cheers.