Bass River Car Wash, Inc Share: Auto Visit Website 15 Old Main Street South Yarmouth, MA 02664 (508) 394-6764 http://www.bassrivercarwash.com Facebook About Map About Welcome to Bass River Car Wash. We have been operating since 1962!We have an automatic exterior tunnel car wash, three self service bays, and eight self service vacuums.Self-service open 24/7.Automatic wash open: Monday - Sunday from 8am to 5pm. What's Nearby? Distance: 5 10 15 20 25 50 mi.