Bark Avenue Mercer Island 7605 SE 27th St, Mercer Island, WA98040 Bark Avenue Mercer Island offers daycare for dogs and grooming for dogs and other small animals like cats, guinea pigs…More and rabbits. Owner Ian Bojarski, an island resident for 25 years, left the high-tech world five years ago to pursue a business that reflected his love for dogs. Dogs spending the day here enjoy two long walks in local parks and plenty of playtime on joint-friendly recycled tire flooring. Day care can also be purchased for half-day or for the "2-hour lunch special," for only $5. Grooming options range from just toe trimming to full-service bathing or grooming, which include ears, glands, sanitary clip and paw trim. The website includes recommendations for pet sitters, trainers and dog walkers.