Underwater Metal Detecting: Your Guide to Treasure Hunting Beneath the Waves

Dive Into Underwater Metal Detecting

Underwater metal detecting opens up a world of treasure hunting possibilities. From beaches and shallow surf zones to deep diving expeditions, the underwater environment holds countless lost treasures. For extended underwater work, pair your detector with a hookah system — see our Hookah Diving Introductory Guide.

Why Detect Underwater?

• High traffic areas: Beaches and swimming spots see thousands of visitors who lose jewelry and valuables
• Less competition: Fewer detectorists search underwater vs. dry land
• Natural collection points: Currents concentrate targets in specific areas
• Historical sites: Shipwrecks and old swimming holes hold relics and artifacts

Choosing a Waterproof Metal Detector

Top picks for surf zones and shallow water:

• Quick Draw II Metal Detector — fast target recovery, excellent for surf zones
• Quick Draw Pro Metal Detector — professional-grade for serious hunters
• Land Ranger Pro Metal Detector — excels in challenging mineralized conditions

Key features: waterproof depth rating, saltwater capability, discrimination control, clear audio feedback.

Best Locations

Beaches and surf zones: Focus near towel lines, volleyball courts, and popular swimming spots. For Oregon coastal gold, see our Oregon Beach Prospecting Guide.

Rivers and creeks: Great for gold nuggets and old coins. Focus on inside bends where heavy items settle — see Reading a River for full location strategy.

Boat launches and docks: Constant activity means frequent drops into the water.

Essential Gear

• Waterproof headphones
• Long-handled sand scoop with holes for sifting
• Dive flag (required by law in many areas)
• Wetsuit or drysuit for cold water
• Mesh finds bag
• Bounty Hunter Pin Pointer — precise target recovery underwater

Techniques

• Grid searching: Work in straight lines, slightly overlapping each pass
• Follow the slope: Items naturally roll and collect at the slope between dry sand and water
• Hunt after storms: Rough weather exposes new targets
• Time your hunts: Low tide exposes more area

Gold Prospecting Combo

Combine underwater detecting with sluicing for maximum gold recovery. The Creek Prospector Detector Bundle includes a detector, sluice, and gold pan. Download our free Prospecting by State Guide (includes GPS hotspots) for top locations.

Safety First

• Never detect alone — use the buddy system
• Be aware of currents, tides, and weather
• Use a dive flag when required
• Know your limits and don't exceed your diving certification
• Watch for boat traffic in navigable waters