I spent my vacation 2019 in this city and found this place is very interesting. Its name is " Cau lac bo ho boi Thanh Truc ' which has 2 swimming pools and 6 badminton professional standards . The address is " 234/6, Đường Nguyễn Huệ, Phường 1, Bến Tre, Vietnam " and i also include the link from Google Maps https://goo.gl/maps/RYrXomQ47VgKoze78 . This is the phone number from the website is +84 779 602 630 The price for 1 hour is about $44.000 vnd ( approximate $2 usd) Pay them a visit and feel for yourself as a badminton player.