Waruga is traditional grave of Minahasa ancestors' tribe, which had there since Megalithic era, and made from stone called 'dwiruga'. Located in Airmadidi is an ancient historic cemetery where Minahasan ancestors are buried and is a remnant of the megalithic age. Waruga (head stones) are unique square stones with holes in the middle and prism shaped lids. 144 gravestones built as place of corpse, such as respectable people corpse, elite figure or man who assumed have miracle is entered with sit position and folded hand, just like baby position in womb. Engraving in the stone describe death cause, late hobby, character / nature or work. The scenery en route to this venue is also interesting with a sweeping vista of coconut and spice trees (25 km from the resort).