1st Mariner Arena, Baltimore's largest indoor sports and entertainment facility, has long been considered an anchor, which contributed to the growth and prosperity of Baltimore. The facility opened in 1962 and was the cornerstone of the Baltimore Inner Harbor redevelopment. Major renovations occurred in the late 80's. The 1st Mariner Arena is just a short distance from harbor front attractions and major hotels. An 850-car garage is attached to the facility for the convenience of patron parking and there are thousands of additional parking spaces nearby. Phone: (410) 347-2020