Indonesian customs are well known for abusing their "power" at the airport, they just love to order international passengers (doesn't matter they are Indonesians or Foreigners), looking for your mistakes, and would love to "take away" your belongings.

Try to learn a little Indonesian, just incase you got stuck at the airport while trying to enter the country, you might find it easier to communicate since many custom people have broken English. Some have excellent, some others plain nothing and I have seen many Foreigners stuck for a while since there are lost in translation situation.

Once you are in Indonesia, it is easy for you to travel to any cities, any islands, without having to show your passport everytime.

Have fun in Indonesia!

Now this suggests why it doesn't make sense, but it doesn't really say what happens if you try. If you have a ball moving half the speed of light, it will take a certain amount of energy to accelerate it to 3/4 the speed of light. It will take more energy to accelerate it to 7/8 the speed of light. As it gets closer to the speed of light, it takes more energy (not the same amount) to move it incrimentally closer, essentially because the mass of the object increases, so it takes more energy to get it going faster. To get an object to move at the speed of light, you need infinite energy. There isn't infinite energy in the universe (there's a lot, but it isn't infinite), so you can't move anything that fast.

Finally, you should keep in mind that Einstein's relativity doesn't work like Galileo's relativity. The first part is the same. If you are not accelerating, you can think of yourself as stationary and everything else moving around you. That frame of reference is called an inertial reference frame. If you are on a train going 30 mph, you see everything else going by you at 30mph and you feel yourself stationary. Physics doesn't distinguish between the different frames, you pick one and do the math and it works. There's no absolute reference frame, everything is just relative to everything else.

The difference in Einstein's theory is that even though movement is relative, the speed of light is still constant. If you are on a train moving forward at 30mph and you throw a ball forward at another 30mph, someone on the ground sees the ball move forward at 60mph, but you see it move at 30mph relative to you. But if the speeds get really really big, that math doesn't work anymore. If you're on a train going half the speed of light and you throw a ball forward at half the speed of light, someone on the ground will see the ball move forward not at the speed of light, but at a slower speed, around 3/4 of the speed of light (I'm guess, I haven't done the math in a while). An if you are on a train, going any speed at all, no matter how fast, and you shine a light, you will see it going at the speed of light, but someone on the ground will also see it going at the speed of light. They won't see it going any faster just because you're in a moving frame of reference.

So no matter how fast you're moving, you see yourself as stationary and your mass as your rest mass. Everybody else sees you moving at some relative speed and sees your relativistic mass and energy approach infinity as your speed gets closer to the speed of light, but you can never reach that speed. Note that for you to get to that speed, you would see everything else moving at the speed of light in the other direction, which would also require infinite energy, and thus it is impossible from your reference frame as well (the physics always works equally well from all reference frames).

It's a complicated theory. If you want to learn more without going into the math (the math isn't really helpful in understanding the concept anyway), I recommend The Elegant Universe by Brian Greene. Read as much as you can. When it gets too complicated, stop. You'll have gotten a lot of interesting ideas out of the book no matter how far you get into it.

Next, do some research into the countries you want to visit. Decide what you are looking for–adventure travel, culture, history, parties, or a combo of all of the above. Look into forums like these for advice on places to visit.

Once you have an idea of the countries you'd like to visit and what you'd like to do there, start looking at local travel agencies or local guides. You can find hotels rated by regular people, not to mention open forums where you can ask questions and find out places to visit, on sites like TripAdvisor.com or on these Yahoo forums.

Now that you have everything in mind, plan for a time to visit according to either weather or seasonal prices. You can find cheap airfare on mobissimo.com–they search like 100 sites to find the best ones.

Once you have most of that planned out, go buy a Frommer's guide or other guide book to the country, and possibly a phrasebook. Try to find people in your area who speak the language of the countries you will be visiting to get a heads up on good words and pointers to know. Also, read the guide book and phrasebook before you leave–it makes life much easier when you know what to expect and how to handle different situations, like being served guinea pig in a restaurant.

Finally, have an open mind to new experiences, and realize that life is different abroad. Enjoy!