3rd Avenue Barber Shop in downtown San Diego operates a single-chair barbershop at the corner of Third Avenue and Island Avenue, one block west of the Gaslamp Quarter. The one-seat format dedicates uninterrupted time to each scissor cut and hot-towel straight-razor shave, a deliberate contrast to the multi-barber rotation at Kutthroat Downtown on nearby Market Street. Services cover men's haircuts, head shaves, and full face shaves performed with manual clippers and single-blade razors rather than electric trimmers. The shop sits within the 92101 grooming corridor near Fifth Avenue, where clients coordinate fresh cuts with suit adjustments at B Street Tailoring and Cleaners before Gaslamp Quarter events. Each straight-razor shave incorporates a hot lather application, single-blade edge work along the neckline and sideburn taper, and a cold-towel pore treatment to finish.