Beaver Dam
Swimming hole in Baltimore, Maryland · Quarry
Beaver Dam is a quarry swimming hole. It is at 10820 Beaver Dam Rd, Cockeysville, MD. Fee notes: 2026 daily: weekday adult (12+) ~$25 / youth (2–11) ~$20; weekend & holiday adult ~$30 /…. Best season: Weekday openings for shorter gate lines Memorial Day–Labor Day.
Typical season: Weekday openings for shorter gate lines Memorial Day–Labor Day
About Beaver Dam
**Beaver Dam Swimming Club** in Cockeysville is a private ~30-acre marble-quarry swim park. the Baltimore-area day escape with a deep spring-fed quarry (average ~**40 ft**), two chlorinated pools up to 5 ft, rope swing, and snack bar. This is a ticketed facility, not a free hunting-for-a-bank hole.
2026 day rates run about **$25 adult / $20 youth weekdays** and **$30 / $25 weekends and holidays** (Memorial Day, Labor Day; under 2 free). Quarry rules are strict: ages 4+, life jackets for younger quarry swimmers, swim test for 13+ going jacket-free. Typical hours ~11 a.m., 6:30 p.m. weekdays / to 7 p.m. weekends. Weekday openings beat weekend holiday surges; budget extra if anyone in the group might leave and need to re-enter.
Key facts
Structured details for trip planning — verify access and fees with the land manager before you visit.
- Address
- 10820 Beaver Dam Rd, Cockeysville, MD 21030
- Water type
- Quarry
- Water body
- Quarry
- Fee
- 2026 daily: weekday adult (12+) ~$25 / youth (2–11) ~$20; weekend & holiday adult ~$30 / youth ~$25; under 2 free. Re-entry requires paying…
- Nearest town
- Baltimore
- State
- Maryland
- Coordinates
- 39.47931, -76.65703
- Best season
- Weekday openings for shorter gate lines Memorial Day–Labor Day
- Access difficulty
- Easy facility access; quarry swimming for strong swimmers only
- Parking
- See facilities notes
- Lifeguard
- Present (seasonal)
- Cliff jumping
- Reported
- Dogs allowed
- Yes
- Activities
- Quarry swimming, pool swimming, rope swing, picnicking on grounds
- Facilities
- Pools, quarry, rope swing, snack bar, parking, lifeguards
- Last verified
- July 15, 2026
The experience
- Best time to visit Weekday openings for shorter gate lines Memorial Day, Labor Day
- Access Easy facility access; quarry swimming for strong swimmers only
- Facilities Pools, quarry, rope swing, snack bar, parking, lifeguards
Highlights & features
- Historic flooded marble quarry
- Rope swing and diving platforms
- Clear 40-foot-deep freshwater
- Family-friendly amenities
- Rich wildlife and scenic views
- Floating logs and rope swings for adventurous swimmers
- Historical significance as a marble quarry
- Diverse wildlife and native plants
How to get there
Address: 10820 Beaver Dam Road, Cockeysville, MD 21030. Phone (410) 785-2323. Confirm beaverdamswimmingclub.com for holiday hours and any capacity limits before you drive.
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1. From Baltimore / Hunt Valley, follow Beaver Dam Road to the club entrance.
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2. Pay daily admission (re-entry requires paying again) or show a season pass.
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3. Use pools for casual swimming; quarry only if you pass the facility’s strength/test rules.
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4. No pets (service animals only); follow lifeguard instructions.
Plan your visit
Beaver Dam works well as a day trip from Baltimore or Hunt Valley. Stock up in town, then head to the water with food, water, and sun protection. Nearby options include Cunningham Falls S.P. and Betterton Beach. For the full list in Maryland, see our state directory.
Access & fees
Access requires payment of an entrance fee. Parking is available but can fill quickly on summer weekends and holidays. The site is officially sanctioned and maintained, offering basic facilities. Always check local postings for current hours and any specific rules regarding diving or rope swing use.
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Frequently asked questions
How much is Beaver Dam Swimming Club?
2026 weekdays about $25 adult / $20 youth (2–11); weekends and holidays about $30 / $25; under 2 free. Season passes cost more upfront.
Is Beaver Dam a real quarry?
Yes — a spring-fed marble quarry averaging about 40 feet deep, plus separate shallower pools for general swimming.
Do kids need life jackets in the quarry?
Ages 4+ may enter the quarry under club rules; younger quarry swimmers need life jackets, and ages 13+ must pass a swim test to go without one.
What are Beaver Dam hours?
Commonly 11 a.m.–6:30 p.m. weekdays and 11 a.m.–7 p.m. weekends in season — confirm current posted hours.
Can you leave and come back the same day?
No free re-entry — exiting means paying again to re-enter.
Are dogs allowed at Beaver Dam?
No pets except service animals.
How far is Beaver Dam from Baltimore?
About 20–30 minutes north toward Cockeysville / Hunt Valley depending on traffic.
Is there food on site?
Yes — a snack bar operates during the swim season.
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Map & location
Culture & history
Originally a working marble quarry, Beaver Dam played a significant role in Maryland’s industrial history before its transformation into a recreational site.
Conservation
Visitors are encouraged to follow Leave No Trace principles to protect the site’s natural beauty and ecological balance.
Sources & updates
Spotted outdated access, fees, or safety info? Send a correction with the page URL — we review every submission.