Pet Supermarket is kicking the new year off right! The specialty pet supply retailer is hosting a Grand Opening Celebration at its new location within the River Landing Shops & Residences in Miami, Florida, on Saturday, January 14, and Sunday, January 15. The event is happening during store hours from 9 a.m. to 8 p.m. on Saturday and from 10 a.m. to 7 p.m. on Sunday.