Myself and my 2 teenagers set off from Monkey Forest Rd (halfway between markets and Monkey Forest) around 9am to walk to Karsa Spa for massages. While the walk out from Ubud and over the ridge is not particularly hard, it is definitely hot and sweaty! We drank a lot of water. Lovely views from the ridge. Some art shops and cafes at the other end. We had our massages, ate at Karsa Cafe and got transport back to Ubud. Go prepared with water and enjoy this walk. It took us about an hour.