The phrase "takes a hike" is often used to mean leaving or going away. The antonyms for this phrase would therefore involve words or phrases that are synonymous with staying or remaining. Some possibilities might include "stays put," "remains in place," "holds fast," or "sticks around." Other antonyms could include phrases related to returning or coming back, such as "returns home," "comes back," or "rejoins the group." Ultimately, the antonym for "takes a hike" will depend on the context of the sentence and the specific meaning that the speaker intends to convey.