Rosedale Lake Parking Area: Lawrence Hopewell Trail
Parking lot
Pennington, NJ 08534

Background: generated illustration, not a photograph of this location.
Plan a future Hopewell Quarry visit with day-pass information, quarry-versus-pool rules, seasonal closure notes and reviewed historical photos.
Swimming temporarily closed
Do not plan a swim while this recorded closure remains in effect. Check the managing authority for reopening; other park activities may have different rules.
Quarry and pool have different rules. The operator excludes children under seven from the quarry and requires a quarry swim test for ages 7-17. Follow staff direction and current rules; no unrestricted rock jumping or diving permission is implied.
Official sources checked:
Status summarizes our reviewed record, not today's opening or safety. Check current rules, swimming boundaries and notices before visiting.
Location
A closer look
Photos show past visits, not current water levels or swimming conditions. Select a photo to view it larger.




This is a desk-researched listing. A record update or map check does not confirm current swimming permission or water conditions.
Found an error? Send a correction with the location and a source. How we research listings.
The natural quarry basin and the separate swimming pool serve different visitors. Tree-lined rock walls give the quarry its character, while the pool and lawn provide a different setting for a family day. Plan around the facility's admission and safety rules, not the old description of an exclusive members-only retreat.
The operator's website offers day-pass booking as well as season passes. Check ticket availability and current prices before travel. Admission does not guarantee access after a closure or override staff restrictions.
As reviewed on October 9, 2026, the operator's main page announces the end of the 2026 swim season. Summer hours remain on older pages, but they should not be read as confirmation that the facility is open today. Watch the operator's updates for the next regular-season calendar.
The operator's age guidance excludes children under seven from the quarry. Its quarry swim test applies to ages 7-17 and includes about 80 yards of crawl or breaststroke followed by three minutes of treading water. That is not a blanket rule for the separate pool. Read the current facility rules before deciding which area suits your group.
The operator's grounds overview describes picnic space and other between-swim activities. The selected historical photographs show the pool/quarry layout, railed steps, floating platforms and shaded tables beside volleyball space. They help explain the setting, not today's amenities or safe diving locations. Use 180 Crusher Road for trip planning; the retained legacy map pin is not a verified entrance.
Use the operator's address: 180 Crusher Road, Hopewell, NJ 08525. Plan navigation to the facility rather than the retained historical pin, which is about 1.1 mi from the saved place record and is not a verified entry. Do not rely on old highway exit numbers or enter when the facility is closed.
Reviewed October 9, 2026: the operator root announces the end of the 2026 swim season. Older pages still display summer hours; those are not today's opening confirmation. A March 2027 Polar Plunge mention is not a regular-season reopening date.
Confirm the entrance, parking arrangements, and legal access with the land manager. A map pin does not establish a public right of access. Follow posted routes and never block gates or driveways.
Quarry and pool have different rules. The operator excludes children under seven from the quarry and requires a quarry swim test for ages 7-17. Follow staff direction and current rules; no unrestricted rock jumping or diving permission is implied. Public park access does not necessarily include permission to swim. Respect private property and posted restrictions.
Water conditions can change quickly. This listing does not provide a current safety or water-quality assessment. Check official alerts and avoid entering water when conditions or permission are uncertain.
Nearby places from saved public map data, not necessarily facilities at the swimming spot. Confirm access, hours, fees, and amenities with the operator before you drive.
Map data retrieved 2026-06-15
Parking lot
Pennington, NJ 08534
Park
197 Blackwell Rd, Pennington, NJ 08534
Campground
1346 Edinburg Rd, Princeton Junction, NJ 08550
Campground
100 US-46, Columbia, NJ 07832
Campground
135 Goritz Rd, Milford, NJ 08848
City Hall
30 N Main St, Pennington, NJ 08534
Park
King George Rd, Pennington, NJ 08534
Public works department
301 N Main St, Pennington, NJ 08534
No. The operator offers day passes as well as season passes when operating. Confirm availability and current admission terms before travel.
The main operator page reviewed October 9, 2026 announces the end of the 2026 swim season. Older summer hours are not current opening confirmation; check the next calendar directly.
The operator excludes children under seven from the quarry. Ages 7-17 must pass the quarry swim test. Ask staff about the separate pool and current supervision rules.
No. Do not treat the historical photos or old description as permission. Use only the entries and activities authorized by staff under current facility rules.
Use the official address, 180 Crusher Road, Hopewell, NJ 08525, after confirming opening and admission. The retained historical pin is unverified.
Friends of Hopewell Quarry, a nonprofit, purchased the property in August 2021. The operator describes a shift from the former members-only business toward broader public access through passes.
Four historical photos show the overall grounds, quarry platforms, railed steps and picnic/volleyball area. They are not today's opening notice or diving clearance.
Respect staff instructions, closures and the property boundary. Keep the grounds clean and use permitted facilities rather than improvising rock entries.
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Use this safety guide before entering any natural water.
Safety & Access Notice
This information is for general planning only and may be incomplete, outdated, or inaccurate. Access rules, closures, water levels, currents, hazards, and legal restrictions can change at any time. Always verify current rules with the land manager or official source before visiting.
You are responsible for your own safety and for following all posted signs, laws, and local regulations. Read the full disclaimer.
No overnight camping permission established. Plan a day visit during authorized operations.
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Safety & Access Notice
This information is for general planning only and may be incomplete, outdated, or inaccurate. Access rules, closures, water levels, currents, hazards, and legal restrictions can change at any time. Always verify current rules with the land manager or official source before visiting.
You are responsible for your own safety and for following all posted signs, laws, and local regulations. Read the full disclaimer.
Joshua Havens created Hidden Swimming Holes to make it easier for people to find — and safely visit — natural freshwater swimming destinations across the United States. He researches access conditions, water quality resources, and land management rules so you don't have to start from scratch. He holds a strong belief that good outdoor recreation information should be accurate, honest about its limitations, and freely available.
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