Trikut Pahar, about 15 km from Deoghar on the road toward Dumka, is the town's best escape into the hills. The three-peaked ridge is both a pilgrimage site and a local trekking spot, with temples, forest, and views back across the plateau.
Only two of the peaks are normally considered safe for walking; the third is too steep. Go early if you want cooler weather and clearer views, and check locally before planning around the ropeway, as operations can change.