KEY WEST SCUBA FIELD GUIDE
Morning Two-Tank on the Vandenberg: Exploring the World’s Second-Largest Artificial Reef
A 4.5-hour morning two-tank wreck dive from Key West that visits the USNS General Hoyt S. Vandenberg—an immense, coral-encrusted naval ship sitting 6 miles south‑southeast in the Florida Keys National Marine Sanctuary.
Morning Two-Tank on the Vandenberg: Exploring the World’s Second-Largest Artificial Reef.
Set out from Key West for a focused morning on the Vandenberg, the retired USNS General Hoyt S. Vandenberg sunk in 2009 and now billed as the world’s second-largest artificial reef. Resting at 140 feet and located within the Florida Keys National Marine Sanctuary roughly six miles south‑southeast of Key West, the ship’s vast deck and corridors are now dense with corals and marine life—an advanced, two‑tank dive that delivers scale and biodiversity under clear Caribbean light.
Highlights
Outing Highlights
The USNS General Hoyt S. Vandenberg — sheer scale
The Vandenberg is the centerpiece: a purposefully sunk naval vessel (2009) that now ranks as the world’s second‑largest artificial reef, its superstructure offering an expansive deckscape to explore.
Deep, disciplined diving — wreck at 140 feet, dive to 100 feet
Though the Vandenberg rests at about 140 feet, this morning two‑tank itinerary takes divers to a planned maximum depth of 100 feet, giving access to broad sections of the deck and structure.
A living reef — coral growth and abundant sea life
Decades underwater have encrusted the ship with colorful corals and created habitats for diverse marine life, turning steel corridors and rails into corridors of reef ecology.
What the day feels like
What the morning feels like
The trip is a focused, morning outing: two dives on a single, colossal wreck. Divers transit offshore to the Vandenberg, descend to explore open deck areas and peek into corridors, and surface having sampled two distinct vantage points of the same vessel—an immersive, advanced wreck experience that emphasizes structure, depth, and marine life.
THE WRECK
The USNS General Hoyt S. Vandenberg — sheer scale
The Vandenberg is the centerpiece: a purposefully sunk naval vessel (2009) that now ranks as the world’s second‑largest artificial reef, its superstructure offering an expansive deckscape to explore.
THE DEPTH
Deep, disciplined diving — wreck at 140 feet, dive to 100 feet
Though the Vandenberg rests at about 140 feet, this morning two‑tank itinerary takes divers to a planned maximum depth of 100 feet, giving access to broad sections of the deck and structure.
THE ECOSYSTEM
A living reef — coral growth and abundant sea life
Decades underwater have encrusted the ship with colorful corals and created habitats for diverse marine life, turning steel corridors and rails into corridors of reef ecology.
Suitability
Who it's for
Who this dive suits — and who should think twice.
Practical planner
Details to review before reserving
This is a morning two‑tank outing with a total trip time of approximately 4.5 hours; expect boarding, transit, two dives, and surface intervals within that window.
Meet at 606 Front Street, Key West, FL 33040 prior to departure.
Confirm required dive gear, certifications and any rental options with the operator before arrival so you come prepared for two dives on a deep wreck.
The Vandenberg lies within the Florida Keys National Marine Sanctuary; briefings will cover site specifics and any sanctuary rules relevant to the dive.
Review cancellation policies before reserving.
Frequently asked questions
Planning Your Outing
How long is the trip?
The morning two‑tank dive outing lasts approximately 4.5 hours.
Where do I meet for departure?
Meet at 606 Front Street, Key West, FL 33040.
How deep is the Vandenberg and how deep will we dive?
The Vandenberg rests at about 140 feet; the dive itinerary takes divers to a planned maximum depth of 100 feet.
Is there a minimum age to join?
Yes—the outing is open to participants aged 15 and older.
What will I see on the wreck?
Divers explore the ship’s expansive deck and corridors, where the structure is encrusted with corals and supports abundant marine life.
Is this an advanced dive?
The trip is described as an advanced wreck dive, focusing on deeper structure and extended bottom time.