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Texas Scuba Academy
SDI Underwater Navigation
Open Water certifiedSDI Certified

SDI Underwater Navigation

Find your way back to the boat, the exit point, or that one great spot — every single dive.

$299.95Enrollment Open
Have questions? Call (512) 489-4404
  • ✓eLearning access as soon as you check out
  • ✓We’ll be in touch to schedule your sessions
Taught by Brady Huddleston
SDI Course Director & Instructor Trainer · PADI IDC Staff Instructor · American Red Cross Instructor
Meet the team

What's included

✓SDI eLearning and course materials
✓Personal instruction from a certified SDI Instructor
✓All required training equipment provided
✓Lifetime SDI certification, recognized worldwide
✓Flexible scheduling — we handle the pool location and gear
“Best decision I made. The instructors were patient, the small class size meant real attention, and I booked everything online without a single phone call.”
— Recent Open Water graduate

Who it's for

This course builds on prior certification and experience — here's what you'll need before you start.

✓
SDI Open Water Scuba Diver, SDI Junior Open Water Diver, or equivalentBase certification required
✓
Minimum age 1810 years old with parental consent

What you'll learn

Knowledge Development

✓The aquatic environment: vision, light, sound, tides, currents, waves, and surge
✓Natural navigation: bottom contours, depth, amount of light, surge, currents, and underwater objects
✓Compass types (analog and digital) and their features
✓Compass use, estimating distance underwater, kick cycles, and time

Practical Training

✓Equipment set up, dive planning, and predive checks
✓Orientation and navigation skills, generally practiced first on the surface from shore
✓Practicing compass use on the surface: out-and-back plus square and triangle patterns
✓Performing a square pattern on the bottom
✓Performing a triangle pattern on the bottom
✓Maintaining buddy contact, equipment disassembly, and logging all dives

Frequently asked questions

Many modern dive computers have a digital compass built in — that qualifies. A dedicated analog wrist compass also works well. We'll cover the differences in class and can advise on what to use or purchase before your dives.

Simple process

How it works

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eLearning at home

Complete the academic portion online at your own pace — videos, quizzes, no classroom required.

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Open water dives at the lake

Skills and dives happen at a local dive site, on a date we set with you.

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Get certified

Finish your dives and we issue your certification — card in hand, recognized worldwide.

Ready?

Ready to get in the water?

Book online in minutes. eLearning starts instantly. We’ll be in touch to schedule.

Call (512) 489-4404

Already certified? Advanced Adventure Diver is a popular next step.