The most common way to reach Ojimachi is by bus from Takayama, which takes about 1 hour and costs ¥2,400. There are usually seven departures from Takayama (tel. 0577/32-1688) daily April through November, less frequently in winter (heavy winter snowfall sometimes renders the road impassable). From Kanazawa, a bus operates thrice daily mid-March through November; the fare is ¥1,800 for the 1 1/4-hour trip. In any case, buses arrive at a parking lot next to the Gassho Zukuri Minka-en open-air museum ; minshuku are located in the village on the other side of the river, reached via pedestrian suspension bridge.
There's a tourist office (tel. 05769/6-1013; daily 8:30am-5pm) located next to the bus parking lot. You can pick up an English-language map, reserve a room in a minshuku if you have not already done so, and store luggage here for ¥300 if it won't fit in any of the adjacent lockers. There's a second tourist office across the river on the main road in the center of town, open daily 9am to 5pm.
Your own two feet can do it best. You can walk from one end of the village to the other in about 15 minutes; English-language signs direct you to the various attractions.