Tirta Empul was founded in 962 AD and has been used by the Balinese as a holy spring to bathe in ever since. It is said the waters have healing powers, both physically and spiritually, so people come from all over the island on certain days to purify themselves under the spouts of cool crisp water. You will see people place offerings, or sometimes just say a prayer at each of the spouts from west to east, but be aware that the last of the 13 spouts are for purification after funerary rights of a family member. Bathing in the pools is can be a very moving experience even if you are not religious or spiritual. However, even if you feel nothing but the refreshment of a cool dip on a hot day, it's ok too. As in any Balinese temple, you must be respectful the rules laid down by the Hindu religion. Women should not visit a temple while they have their period and both men and women must wear a sarong and sash in the temple grounds and even while bathing. Men can go shirtless in the pools but women must wear a shirt. There are changing room where you can get out of your wet clothes, but don't forget to bring an extra set. Tirta Empul is an easy 25 minute trip north east of Ubud and is also very close to Gunung Kawi, another religious site worth a visit.