• Poseidon Package

Poseidon Package

4 Specialty Certifications · Bundle & Save · Toward SDI Master Diver

Four specialties that make you self-sufficient. The Poseidon bundles Computer Nitrox, Advanced Buoyancy, Underwater Navigation, and Night / Low Vis, so you can dive enriched air, own your buoyancy, find your way underwater, and dive after dark with confidence. It's your first real stride toward SDI Master Diver, at a bundled price that costs less than the four courses separately, and every one counts toward your Advanced Diver and Master Diver ratings. You'll need Open Water first. Already have one? Swap Computer Nitrox for Altitude, or any other for a specialty like Full Face Mask, Search & Recovery, Underwater Photography, or DPV.

Veterans can put their GI Bill toward their training, and families can use ESA or ClassWallet funds. See if you qualify.

Starting from
$559.00

Availability: In Stock

The Poseidon Package

4 Specialty Certifications · Bundle & Save · Toward SDI Master Diver

The Poseidon is where you go from newly certified to genuinely self-sufficient. Four SDI specialties, bundled together, take you well past the basics: dive on enriched air, own your buoyancy, find your way underwater without surfacing, and open up a whole world after dark. It's your first real stride toward the SDI Master Diver rating, and it costs less than booking the four courses on their own.

What's in the bundle

Computer Nitrox

Certification 1

Enriched air for longer bottom time and shorter waits between dives.

See the course ›

Advanced Buoyancy

Certification 2

Hover where you want, kick less, breathe easier, and use less air.

See the course ›

Underwater Navigation

Certification 3

Read the environment and run a compass so you always find your way back.

See the course ›

Night / Low Vis

Certification 4

Dive after dark with confidence, and see the ocean most divers never do.

See the course ›

Bundle and save

Taken as a package, the Poseidon costs less than the four courses booked separately, and it locks in today's price. Together these four skills make you a self-sufficient diver, and every one of them counts toward your SDI Advanced Diver and Master Diver ratings.

✓ Good to know

  • Four full SDI specialty certifications, bundled
  • Certifications never expire, and they count toward Advanced Diver and Master Diver
  • Package pricing applies when all four courses are purchased together in a single payment
  • Complete all four courses within 6 months of sign-up

Prerequisites & swaps

  • You'll need your Open Water certification first, since the specialties build on those skills.
  • Already certified in one of these? Swap Computer Nitrox for Altitude, or any of the others for a specialty like Full Face Mask, Search & Recovery, Underwater Photography, or DPV.
  • Own your own mask, fins, boots, and snorkel; the rest of the rental gear is included.
  • Spots fill fast, especially around class dates, so book early.

Frequently Asked Questions

What's included in the Poseidon?
Four SDI specialty certifications: Computer Nitrox, Advanced Buoyancy, Underwater Navigation, and Night / Low Vis. Together they make you a self-sufficient diver and take a real stride toward the Master Diver rating.
Do I need to be certified already?
Yes. You'll need your Open Water certification first, since the specialties build on those skills. If you're not there yet, we'll get you started with Open Water.
Can I swap courses I've already taken?
Yes. If you already hold Computer Nitrox, swap it for Altitude. Any of the other courses can be swapped for another specialty such as Full Face Mask, Search & Recovery, Underwater Photography, or DPV, so you always get four certifications.
Is there a time limit to finish?
Yes. All four courses must be completed within 6 months of your sign-up date. Package pricing applies when all four are purchased together in a single payment.
Do these certifications expire?
No. Your certifications never expire, and all four count toward the SDI Advanced Diver and Master Diver ratings.

Let's. Go. Diving.

Four specialties, one bundle, a genuinely self-sufficient diver. Call the shop and we'll get your Poseidon package scheduled.

Call the shop (480) 881-4013

A bundle of four SDI specialty certifications, Computer Nitrox, Advanced Buoyancy, Underwater Navigation, and Night / Low Vis, at package pricing when purchased together in a single payment. Requires Open Water certification. All courses completed within 6 months of sign-up. Substitutions available.

By booking, you agree to our Terms & Conditions.

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