According to several reviews, one the most reliable taxi services in Bali is the Balil Taksi or the Blue Bird (+62 361 701111). You can always hire a taxi by flagging one on the street. The fare starts at Rp 5,000 for the first two kilometers and Rp 5,000 per kilometer after that. When planning a day trip around Bali it is recommended that you hire the taxi for the day since it will work out cheaper and will be convenient.