Doun Kaev (Khmer: ដូនកែវ [doun kaew]; lit. "Crystal Grandmother") is the capital of Takéo Province, Cambodia. In 2019 it had a population of 43,402 which had increased from 1998. The small city and province is known for silk weaving, and the province is home to about 10,000 of the total of 15,000 Cambodian weavers.
Most silk weavers in the villages are near the national highway in the direction of Takéo town. The technique of silk weaving could have come to the Khmer during the Kingdom of Funan, probably in the 2nd century, from India and China.
Little eateries along the way
Probably you're going to want to just make this a day outing, but there is a pretty nice casino resort in Chrey Thum close to Phnom Da on the Vietnam border, which will soon be accompanied by another casino resort called Yong Yuan once it is completed.
Probably most conveniently, just drive or arrange transport down Hwy 2 from Phnom Penh. It's a straight shot. There may be a ferry service of sorts between Doun Kaev and destinations along the Mekong River, but that is likely to be a bit time-consuming and involved logistically-speaking.
Most definitely you are going to need motorized transport to see the sites listed below, or a bike at least, if you're really intrepid, since they are out in the country.
In Doun Praev there is a strong cottage industry of silk weaving where in fact most of Cambodia's silk product is produced. Here you are really out in the middle of rice paddies, hot and sticky, and you'd probably just as soon be getting on to Krong Kaeb or maybe Vietnam, but there are two sites worth seeing. In that context, don't necessarily go to Doun Praev, because it's not on the way to either of these. It's just used to categorize these sites since that's the district in which they fall (see directions below instead).