1,024 mapped sites
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Arizona · 3–25 m
A state-park lake in the rolling hills of southern Arizona near Nogales, averaging about 80 feet deep near the dam, which is reachable only by boat or a long shoreline carry. It is a dark-water dive: light fades by 20 feet and divers report effectively zero visibility at 25 feet even with lights, so most stay at 10-15 feet along the rock wall near the day-use area to see fish. Paved walkways at the day-use area provide decent entries.
New Jersey · 28.3–36.9 m
Artificial reef built from Subway Car (Redbird VII) NJDEP deployment record: Subway car, material: Subway Car (Redbird VII), deployed 2003.
Wisconsin · Up to 16.8 m
The 245-ft sidewheel palace steamer Niagara caught fire and sank on September 24, 1856, off Belgium, Wisconsin, killing more than 60 people in one of Wisconsin's deadliest transportation disasters. The wreck lies in 55 ft of water one mile offshore, almost directly off Harrington Beach State Park, and is an underwater museum of mid-19th-century technology: the huge walking-beam engine, cylinders, boilers and hull. A WHS seasonal mooring buoy marks the site.
California · 4.6–30.5 m
Sandy-beach shore dive just south of the Redondo Beach Pier where a gently sloping bottom drops into the head of Redondo Submarine Canyon, which begins around 50 ft and plunges past recreational limits. A short surface swim reaches 60-100 ft, making it a popular deep-training and night-dive site, with a noticeable thermocline around 40 ft. Local clubs dive it on Wednesday nights and classes run most weekends.
California · Up to 21.9 m
A dive site in United States. The site reaches a maximum depth of about 22 m. The site is reached by boat.
New Jersey · 15.8–18 m
Artificial reef built from M-578 Light Recovery Vehicle NJDEP deployment record: Military vehicle, material: M-578 Light Recovery Vehicle , deployed 1997.
California · 6.1–19.8 m
The main landing and most-dived area on eastern Santa Cruz Island in Channel Islands National Park, with rebounding giant kelp forest wrapping from the anchorage around Cavern Point. Popular spots include Scorpion's Rock (20-50 ft of kelp, gorgonians and invertebrates) and the wreck of the Spirit of America sitting upright on sand at about 65 ft outside the anchorage. The area is inside the no-take Scorpion State Marine Reserve.
Maryland · Up to 7 m
Artificial reef built from Concrete pipe, rubble
Wisconsin · Up to 50 m
The two-masted schooner Home (built 1843) sank after colliding with the schooner Fiske on October 17, 1858, and lies upright and mostly intact in about 165 ft of water off Centerville, between Manitowoc and Sheboygan. Found by divers in 1981, it is the second-oldest shipwreck located in Wisconsin waters; the recovered foremast is displayed at Rogers Street Fishing Village in Two Rivers. A cold, deep technical dive within the Wisconsin Shipwreck Coast NMS.
Wisconsin · 27–38 m
The carferry Milwaukee sailed into a violent October 1929 northeaster and foundered with all 52 aboard — the worst carferry disaster in Great Lakes history. She sits upright in about 125 feet of water off Whitefish Bay, railroad cars still on her deck, with her superstructure collapsed alongside. The depth and slowly deteriorating steel make this a serious advanced dive and a sobering piece of Lake Michigan history.
California · Up to 21.9 m
Artificial reef built from Quarry Rock, Augmentations