United States Dive Sites — Page 27

Showing 625–648 of 1,024

Continued from the United States dive sites guide, which covers regions, seasonality, and planning details.

Micheal Golden Memorial Reef

Florida · Up to 6.4 m

Artificial reef built from 6 Florida Limestone Modules

Boat entry

Milford Lake, Kansas's largest reservoir at nearly 16,000 acres west of Junction City, is used by regional divers and instructors as a convenient open-water site. Underwater features include rock formations and submerged timber, and it is generally treated as a beginner-friendly low-visibility reservoir dive. Conditions are typical of Kansas reservoirs, with murky summer water and better clarity in spring and fall.

Shore + boat

Miss Jenny

Florida · Up to 27.4 m

Artificial reef built from 55' X 50' X 25' Dredge Barge. 300' south of "Esso Bonaire"

IntermediateBoat entry

Miss Louise

Florida · Up to 17.7 m

Artificial reef built from 95' Steel Tug Boat, the "Miss Louise"

Boat entry

Missile Tower

California · —

Artificial reef built from Missile Platform

Boat entry

Mississippi Offshore Rigs

Mississippi · Up to 30 m

Decommissioned and standing oil/gas platforms 40-72 miles offshore from Biloxi/Gulfport are the only genuine recreational scuba diving in Mississippi, reached on advanced charter trips. Visibility improves with distance from the murky Mississippi Sound. The structures hold abundant Gulf reef fish.

AdvancedBoat entry

Mizpah

Florida · Up to 27.4 m

Artificial reef built from 185' Yacht, the "Mizpah"

IntermediateBoat entry

Mobjack Bay Reef

Virginia · Up to 7.6 m

Artificial reef built from concrete

Boat entry

Molasses Reef

Florida · 1.8–27.4 m

Molasses Reef is one of the most heavily dived spur-and-groove coral reefs in the world, sitting at the seaward edge of the Florida Keys National Marine Sanctuary off Key Largo. Marked by its iconic light tower, the reef offers more than 30 mooring-buoyed sites from 6-ft snorkel gardens to 90-ft outer ledges, with named features like Hole in the Wall, Winch Hole and the Aquarium. Mild current along the outer edge makes for easy drift dives, and fish life is exceptional thanks to decades of no-take protection.

IntermediateBoat entry

Monastery Beach North (North Monastery)

California · 3–39.6 m

The north end of Monastery Beach (San Jose Creek Beach) on Carmel Bay, sitting on the eastern rim of the Carmel submarine canyon — a 200-yard swim can put a diver over 200 feet of water. Granite reefs and pristine kelp forest start close to shore, but the steep, coarse-sand beach produces violently plunging shorebreak and a washing-machine undertow. The beach is infamous for diver and wader fatalities (roughly 20 deaths since 2004, earning the nickname 'Mortuary Beach'); enter and exit only at the extreme north end and only on small-swell days.

AdvancedShore entry

Monastery Beach South (South Monastery)

California · 3–39.6 m

The southern curl of Monastery Beach, where the shoreline hooks so divers can enter almost facing north with slightly more protection than the rest of the beach. Rocky reef and a dense kelp forest border the Carmel submarine canyon, with spectacular walls and deep water close to shore. The same lethal shorebreak and undertow as North Monastery apply — this is an advanced site that has claimed many lives and must only be dived on very calm days.

AdvancedShore entry

Monohansett Wreck (Thunder Bay National Marine Sanctuary)

Michigan · 3–5.5 m

The Monohansett was a wooden bulk freighter that caught fire and sank in the lee of Thunder Bay Island in November 1907 while sheltering from a Lake Huron storm. The wreckage lies broken into three large sections in only about 18 ft of clear water roughly 500 ft west of the Thunder Bay Island lighthouse, with the boiler reaching to within 10 ft of the surface and the propeller upright on the limestone bottom. Its shallow depth makes it popular with divers, snorkelers, paddlers and the local glass-bottom boat.

Boat entry

Monsanto Boxes

Florida · Up to 22.9 m

The Monsanto Boxes were concrete structures donated by the Monsanto chemical plant and deployed as artificial reefs in Escambia County's nearshore reef zone off Pensacola Beach. County surveys report that only the concrete pilings (about two dozen at the north site) remain, lying in roughly 72-75 feet of water. The low-relief rubble still draws flounder, snapper and baitfish and is mainly visited as a fishing reef or easy second wreck-zone dive.

IntermediateBoat entry

Montana Wreck (Thunder Bay National Marine Sanctuary)

Michigan · 11–20.1 m

The Montana was a 236-ft wooden steam package freighter that burned to the waterline and sank in Thunder Bay, Lake Huron in 1914. She rests in about 63-66 ft of water within Thunder Bay National Marine Sanctuary near Alpena, with an intact power train: a massive boiler, a three-story steam engine rising roughly 30 ft off the bottom, drive shaft and propeller. NOAA maintains seasonal bow and stern mooring buoys, and the wreck attracts game fish, making it a favorite for photographers.

IntermediateBoat entry

Moriches Reef

New York · 21.3–24.4 m

Moriches Reef is an 850-acre NYSDEC artificial reef in the Atlantic Ocean about 2.4 nautical miles south of Moriches Inlet, in 70-80 ft of water. It holds about a dozen sunken vessels plus barges, armored vehicles, Tappan Zee Bridge materials and railcars, with concrete forms added in 2025. A productive advanced boat dive for black sea bass, tautog and scup; visibility typically 10-20 ft. Charter boats such as the Sidekick run from East Moriches.

AdvancedBoat entry

Morrison Spring

Florida · 3–30.2 m

Morrison Springs is a 250-ft-diameter first-magnitude spring pool on the Choctawhatchee River floodplain, run as a free-spirited Walton County park with boardwalks, a swim platform and diver-friendly access. A sandy funnel drops to about 45 ft for open-water divers, while cavern-certified divers can enter two cavern rooms reaching roughly 90-99 ft; the deeper cave system beyond is sealed by collapse. Crystal-clear water (river conditions permitting) and easy entry make it one of the Panhandle's most popular training and recreation dives.

IntermediateShore entry

Morton Park - Little Pond

Massachusetts · 1.5–15.5 m

Little Pond in Plymouth's Morton Park is a sheltered freshwater kettle pond used by local divers as an easy training and gear-shakeout site, especially when the ocean is rough. Average depth is about 19 ft with a maximum around 51 ft, over a very silty bottom with vegetation, rocks, and sunken logs that shelter freshwater fish. The pond is a coldwater pond stocked regularly with rainbow trout. Best dived off-season, since the town beach draws crowds and parking fees after Memorial Day.

Shore entry

Mount Storm Lake (Vepco Lake)

West Virginia · Up to 40.2 m

A 1,200-acre cooling reservoir for Dominion's Mount Storm power station on the Stony River, famous among Mid-Atlantic divers because the discharged cooling water keeps it warm year-round - 50s-60s F in winter and up to the 90s F in summer. Training platforms sit at about 25, 50 and 90-100 ft, with a submerged ghost forest, shed and fence line, and a maximum depth around 130 ft. At roughly 3,200 ft elevation it is an altitude dive, and current rules require divers to access the dive area by boat.

IntermediateBoat entry

Mud Creek

Georgia · Up to 4 m

Mud Creek is a dive site located in United States. Depths run to roughly 4 m. The site is reached by boat.

Boat entry

Mukilteo T-Dock (Lighthouse Park)

Washington · 3–36.6 m

A long-running training and night-dive site beside the Mukilteo ferry terminal and Lighthouse Park, entered from the beach next to the Silver Cloud Inn. A gradual sand slope passes pilings and placed attractions - most famously a PVC-pipe geodome at roughly 50-70 ft - and keeps dropping past 100 ft, making it popular for deep and tech training as well as open-water classes. The original T-shaped dock was removed during ferry terminal construction in the mid-2010s, but the geodome, debris reef and abundant critters remain.

AdvancedShore entry