From Baltimore:

Rehoboth Beach, Delaware and Ocean City, Maryland are popular Atlantic beaches within a 2 to 3-hour drive from Baltimore. Rehoboth Beach is about 2 hours and 45 minutes away, while Ocean City is approximately 3 hours.

Inland beaches:

⭐ 1. Rocky Point Park & Beach — YES, a real sandy beach
This is the best true beach on your list.
Sandy shoreline, calm Chesapeake Bay water, great for swimming.
Well‑maintained, with restrooms, rinse stations, picnic areas, and lifeguards in season.
Family‑friendly and popular in summer.
Clean water quality and high ratings. ⁽¹⁾
Verdict: If you want the closest thing to a “real beach day” near Baltimore, this is the one.

⭐ 2. Gunpowder Falls State Park — Hammerman Area — YES, a nice freshwater beach
Soft sand, grassy areas, and a designated swimming beach.
Bathrooms, changing rooms, showers, snack bar, and kayak rentals.
Very clean and well‑maintained.
Gets crowded on summer weekends. ⁽²⁾
Verdict: A legit beach experience — not ocean waves, but a very nice freshwater/bay‑style beach.

⚠️ 3. North Point State Park — YES, but smaller & more natural
Sandy beach area, calm bay water.
Great for relaxing, picnics, and kids.
Not as large or developed as Rocky Point or Hammerman.
No lifeguards; more of a peaceful shoreline than a full beach resort. ⁽³⁾
Verdict: Good for a chill, low‑key beach day — not ideal if you want big swimming areas or amenities.

🧭 Distance From the Baltimore Cruise Port

Approximate drive times:

Park	Distance	Drive Time
Rocky Point Park & Beach	~17 miles	~30 minutes
Gunpowder Falls – Hammerman Area	~20 miles	~30 minutes
North Point State Park	~14 miles	~25–30 minutes