'Tropical nights' in June?

Couldn't sleep last night coz it was so hot -.- I tossed and turned around for about two hours, woke up again around 3:30am, went to the living room to bring the fan to my room, but was puzzled to see it was not there. Then I found out that my brother already took that fan to his room. Smart boy! At least he had a better sleep than me.
'Tropical nights[열대야]'in June? What a horror! And the rainy season[장마철] has just begun. (Not yet in Seoul, though.)

Yesterday the heat was so unbearable that I took out the fan from the warehouse - it was the first day to turn it on this year. The summer in Korea may be not so hot for some people, if regarding just the temperature(around 30degrees), but it shows a high percentage of humidity that sucks away one's energy.

My brother who's studying at KNEU in Cheongju came home last evening. He said he's going to Geumgangsan[금강산: Mt.Geumgang] in July for three days, by an organised trip from the student union.
Wow! To North Korea! I'm so jealous! I wonder when I'll have a chance to visit that 'forbidden land'. It's such a nonsense that I can go everywhere in the world freely with my ROK passport, but not to North Korea.
Besides the tour to Geumgangsan, he has another schedule to go to Inner Mongolia and North-east China for about nine days, to explore some historic sites. (There are many sites of the Korean ancient Kingdom in the north-eastern part of China.)
Hey brother! Seems that your campus day is so colorful and exciting! I envy you so much.

I have no plan for vacation, not for the next following few years:(

Someone asked me to go to Thailand at the end of July for five days, but that's not for holiday or vacation. A group of dentist plans to go to the Thai-Burma border and give the refugees some free medical treatment. They wanted someone who's familiar with the situation at the border, and a friend recommended me as a 'coordinator'. (The only reason for his decision was, that I've been to one of the border town before.)
I said yes coz I don't have to pay a penny for the flight ticket and accomodation, but I think there wont' be much fun either. Well, and of course, I'm not going to have fun there. I thought it'll be a good chance to get some refreshment before I start my study next semester.