The Haveli Palace Museum was once a place where the Peshwas and the Gaikwads used to come and stay during their visit to Pavagadh. This museum houses ancient artefacts belonging to the 18th century which include paintings, furniture, clothing, weapons, and musical instruments that were popular at that time.
If you have more time to explore, you can visit other nearby places such as Sursagar Lake, Hathni Waterfalls, Jambughoda Wildlife Sanctuary, and Champaner-Pavagadh Archaeological Park, which is a UNESCO world heritage site. If you have less time, you can skip having lunch at Ambica Restaurant and explore more places. Don't forget to wear comfortable shoes and carry water bottles.