Serendipity Wellness Spa - Linden Share: Day Spas Serendipity Wellness Spa - Linden Visit Website 129 East Broad Street Linden, MI 48451 (810) 735-6868 About Map About Sit down. Relax. Serendipity Day Spa will take care of the rest at its full-service salon. Anything you need under one roof, located in Linden, MI. What's Nearby? Distance: 5 10 15 20 25 50 mi.