best thing to do in bandung is to visit Kawah Putih. Definitely in top of the list of attractions for its stunningly beautiful lake as if set out of a movie. It is 2 hours away from Bandung city center and in the highland. The place is cooling but beware of sunburn as it is still really sunny here without feeling it. This is a sulphuric lake as it is from a volcano.The entire area can be explored in 30 minutes.
Visit Tangkuban Perahu Vulcano. Tangkuban Perahu, it's about 1.5 hours from Bandung, it is yet another crater from volcano of Indonesia that is worth the visit for the sheer awe of the view from the top. This may be second best to Kawah Putih but still worth to visit.
here some links that you can see what you can do as tourist attractionhttp://www.tripadvisor.com/Attractions-g297704-Activities-Bandung_West_Java_Java.htmlhttp://allindonesiatravel.com/top-10-things-to-do-and-what-to-see-in-bandung/