1. Baltimore Inner Harbor is one of the most popular tourist destinations in Baltimore, Maryland. It is a historic seaport, bustling with activity and offering numerous attractions for visitors of all ages.

The Inner Harbor is known for its stunning waterfront views, with picturesque views of the Chesapeake Bay and the city skyline. It is home to several iconic landmarks, such as the USS Constellation, a historic naval ship, and the National Aquarium, which houses a wide variety of aquatic life.

Visitors can also explore the Maryland Science Center, which offers interactive exhibits and an IMAX theater, or take a stroll along the promenade and enjoy the various shops, restaurants, and street performers. The harbor is also a popular spot for recreational activities such as boat rides and paddleboarding.

2. The Inner Harbor is open year-round, but operating hours for individual attractions may vary. It is recommended to check the websites or call ahead for specific information.

- USS Constellation: open daily from 10 AM to 4:30 PM, except for major holidays. Phone: (410) 539-1797.

- National Aquarium: open daily from 10 AM to 4 PM, with extended hours on weekends and during peak seasons. Phone: (410) 576-3800.

- Maryland Science Center: open Wednesday-Sunday from 10 AM to 4 PM, with extended hours on weekends. Phone: (410) 685-2370.

3. Admission fees for attractions in the Inner Harbor vary. Here are some examples:

- USS Constellation: Adults $15, Seniors (60+) $14, Children (ages 6-14) $7, Children under 6 free.

- National Aquarium: General Admission $39.95 (ages 12-64), Seniors (65+) $34.95, Children (ages 3-11) $24.95, Children under 3 free.

- Maryland Science Center: General Admission $25.95 (ages 13-64), Seniors (65+) $24.95, Children (ages 3-12) $19.95, Children under 3 free.

Transportation to the Inner Harbor is readily available. Visitors can take the Baltimore Water Taxi, which offers scenic rides along the harbor, or use public transportation such as the Metro Subway or the Charm City Circulator. There are also several parking garages available for those arriving by car.