Start from Indonesia Power building, Karacak-Bogor, we (5 person from mtb-xc) ride to penstock and go to Sipon village. After passing a few villages ahead we start climb to Mountain Buleud. Uphill, downhill, paddy field, mountain, hill, river, xc, dirt road, you named it, its all there. No words that can represent to describe the awesomeness of this trek except you should try by yourself :).
PS: prepare you stamina, before try this route. And don’t forget to bring your own lunch.