How deep is Wreck Alley - Sentinel Island (Lake Mead)?

Wreck Alley - Sentinel Island (Lake Mead) ranges from 6.1 to 91.4 metres deep (20–300 feet) — a deep dive at its limit. It is a freshwater site rated as advanced difficulty. Depths vary across the site, so plan your profile to your training and verify conditions locally.

Is Wreck Alley - Sentinel Island (Lake Mead) a shore dive or a boat dive?

Wreck Alley - Sentinel Island (Lake Mead) is a boat dive — access is by boat rather than from shore. The entry area is recorded as sheltered from surge. No facilities are recorded at the site, and cell service is recorded as good. Entry details and parking notes, where known, are listed in the access section of this page.

Can beginners dive Wreck Alley - Sentinel Island (Lake Mead)?

Wreck Alley - Sentinel Island (Lake Mead) is rated as advanced difficulty, which may not suit new divers. Listed depths run from 6.1 to 91.4 metres (20–300 feet). Access is by boat. Consider your experience level, conditions, and local guidance before planning.

When is the best time to dive Wreck Alley - Sentinel Island (Lake Mead)?

The best time to dive Wreck Alley - Sentinel Island (Lake Mead) is typically Winter for best visibility (100 ft+). Conditions vary, so check the latest reports and forecasts on the dive site page before your trip.

What will I see at Wreck Alley - Sentinel Island (Lake Mead)?

Divers at Wreck Alley - Sentinel Island (Lake Mead) in United States commonly report sightings of Striped bass, Quagga mussel, Bluegill, Common carp, and Channel catfish. Striped bass, Quagga mussel, Bluegill, Common carp, and Channel catfish are recorded as common sightings. Marine life varies by season and conditions—check the site page for recent diver observations and photos.

Map of Wreck Alley - Sentinel Island (Lake Mead)

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AdvancedBoat entry

Wreck Alley - Sentinel Island (Lake Mead)

Nevada, United States

AOW suggested6–91 m depthBoat entry

Boat dive — see Entry & access.

Wreck Alley - Sentinel Island (Lake Mead) at a glance

Wreck Alley - Sentinel Island (Lake Mead) is an advanced boat dive site in Nevada, United States with depths of 6.1–91.4 m (20–300 ft). Typically most favorable Dec · from 3 years of archive data. Divers commonly see Striped bass, Quagga mussel, and Bluegill. Check the latest conditions and entry details before you go.

Wind model · graded 1h ago

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Tap a factor for its source and model point

Site hazards: Extreme depth on the wreck line (140-300+ ft), mandatory decompression below recreational limits, entanglement on guide lines, silt, cold at depth

Read the full hazards ↓

Dive windows this week

Best: Thu

Fri12:00–19:00

Sat15:00–17:00

Sun7:00–10:00

Mon7:00–13:00

Tue7:00–8:00

Wed7:00–11:00

Thu7:00–19:00

Favorable windowModerate window— no window

First light 5:52 · Sunrise 6:18 · Sunset 18:52

Source: Open-Meteo wind · graded 1h ago

Forecast only — always assess conditions on site.

Recent diver reports

Dated firsthand observations from divers — not current conditions.

No diver reports for this site yet. — one dated observation helps every diver after you.

Dived here today — did the forecast match?

What Divers Say

Known for: Striped bass, Quagga mussel, Bluegill

Best time: Winter for best visibility (100 ft+)

Based on community reviews and site data. Conditions vary — always verify before diving.

Best months, historically

What conditions have historically been typical at this site, month by month — not a forecast.

Jan87% 9 kn
Feb81% 10 kn
Mar70% 12 kn
Apr74% 11 kn
May73% 12 kn
Jun71% 12 kn
Jul83% 12 kn
Aug80% 11 kn
Sep86% 10 kn
Oct85% 9 kn
Nov92% 8 kn
Dec100% 6 kn

December hastypically had the largest share of favorable days here. Conditions vary year to year — this is historical context, not a forecast.

Based on 3 years of archive data. Bar height shows the share of days each month whose conditions have historically scored favorably.

Marine life seen at this site

Species noted at this site — not a promise of what you’ll encounter.

Species seen here

Fills & rentals nearby

No dive shops mapped within 25 km. Know one? Add it to the map.

Data updated June 2026

Site details

A diver-created wreck park on the northeast side of Sentinel Island in Boulder Basin, where the local technical diving community has gathered roughly a dozen sunken boats found around Lake Mead. Several wrecks are linked by permanent high-visibility cave line starting near 140 ft and descending past 300 ft, including the Southern Cross (penetrable) and smaller speed and ski boats. The shallower wall above the wrecks makes a good recreational dive, while the wreck line itself is technical territory.

boatwallwreck

Extreme depth on the wreck line (140-300+ ft), mandatory decompression below recreational limits, entanglement on guide lines, silt, cold at depth

Reviews

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