Budi Dive / Courses / Advanced Open Water

Advanced diver training expands your depth envelope to 30 metres with compass navigation and wreck skills.

Complete five specialty checkout dives in Florida coastal waters. Learn deep gas consumption management, underwater search patterns, wreck structure orientation, and night safety procedures.

NAUI Advanced Credential (30m / 100ft)
5 Specialized Checkout Dives
Gulf Wreck & Offshore Ledge Profiles

Precision Underwater Mechanics Beyond 18 Metres

Descending past 18 metres introduces physiological and operational realities that beginner courses intentionally avoid. At 30 metres, ambient pressure reaches 4 atmospheres absolute. Your breathing gas density increases significantly, cylinders drain twice as fast as on the surface, and nitrogen partial pressure begins clouding split-second decision-making.

In the Budi Dive Advanced Open Water program, we do not simply take you on a scenic dive and punch your card. We conduct color absorption tests at depth, measure SAC (Surface Air Consumption) rates under load, navigate box search grids using analog slates and oil-filled compasses, and deploy surface marker buoys from 15 metres with thumb spools.

Advanced diver checking underwater navigation compass and depth gauge alongside a Florida reef wall
Deep Wall Navigation // Compass Azimuth 240 Degrees // Florida Ledge Check

The Five Specialty Core Modules

Mandatory Specialty

Deep Dive Planning (30m)

Gas density analysis, no-decompression limits (NDL), narcosis recognition, and emergency staged decompression protocols using multi-gas computers.

Mandatory Specialty

Underwater Navigation

Natural landmark orientation, kick-cycle pacing calculations, reciprocal compass bearings, and multi-leg search patterns over featureless sand beds.

Specialty Elective

Gulf Wreck Exploration

External structure mapping, hazard identification (fishing line, sharp steel edges, overhead environments), and reel-assisted navigation along exterior corridors.

Specialty Elective

Night & Low-Visibility Diving

Primary and backup LED dive light handling, non-verbal light communication signals, disorientation mitigation, and bioluminescence observation.

Advanced Syllabus Along a Drawn Line

The five practical stages of advanced diver qualification in Tampa.

Stage 1 // Pre-Dive Planning

Decompression Schedules & Turn-Pressure Calculation

Calculate gas consumption profiles and rock-bottom reserve pressures at 30 metres. Determine exact surface intervals and dive computer conservatism factors before packing gear.

Reserve Rule Rule of Thirds
Gas Density Below 5.2 g/L
Stage 2 // Underwater Orientation

Compass Bearings & Grid Search Patterns

Execute reciprocal compass courses within 5 degrees of tolerance. Swim a 30-metre square box search pattern, returning within 1 metre of your starting shot weight using analog wrist compasses.

Liquid-filled underwater wrist compass with calibrated rotating bezel and luminescent heading card
Luminescent Heading Card // Rotating Bezel Set // Navigation Slate Drill
Stage 3 // Deep Water Execution

30-Metre Deep Dive & Physiological Checks

Descend steadily along a mooring cable into 30 metres of clear Gulf water. Monitor your computer's no-decompression margin, assess nitrogen narcosis symptoms with timed math puzzles on a slate, and practice slow, controlled ascents with safety stops.

Deep Descent Profile: Gulf Ledge Ascent rate restricted to 9 metres per minute maximum
Stage 4 // Gulf Wreck Exploration

Wreck Reconnaissance & Delayed SMB Deployment

Survey the steel hull of an artificial reef shipwreck in the Gulf of Mexico. Learn current sheltering techniques behind wheelhouses, manage umbilical line hazards, and deploy a 6-foot surface marker buoy from depth using an anodized aluminium spool.

Common Advanced Open Water Inquiries

No minimum number of logged dives beyond Open Water certification is required by NAUI standards. However, you should possess comfortable buoyancy control and mask clearing skills. If you have been out of the water for over six months, we strongly recommend completing our 1-hour Scuba Skills Refresher ($150–$200) prior to deep ocean checkouts.

While night diving is one of our most popular electives, NAUI allows substituting another specialty dive (such as Peak Performance Buoyancy, Search and Recovery, or Boat Diving) if a candidate has genuine anxiety regarding nocturnal waters. We discuss your elective preferences during initial consultation.

Yes. Bundling the Enriched Air Nitrox specialty ($200–$225) with Advanced Open Water is our most effective training route. You can complete your Nitrox analyzer calibrations in the shop and breathe 32% or 36% Nitrox during your deep checkout dives to dramatically increase your allowable bottom time.

Continuing Education Dispatch

Inquire for Advanced Open Water

Submit your current certification agency, total logged dives, and desired specialty electives. We verify prerequisites and provide scheduling options for upcoming Gulf charters and spring runs.

Please provide your full legal name for the dive roster.
Please provide a valid contact telephone number with area code.
Please enter a valid email address so we can transmit course paperwork.
Please enter your street address or city of residence.
Safety regulations require confirming the medical waiver and privacy terms.
Direct Dispatch Desk: +1 (291) 555-4852