Premium offshore bathymetry

Explore more bottom. Catch more fish.

See the bottom like never before. High-resolution bathymetry, Bank Zoom detail, and fully offline charts for the serious offshore angler.

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Fully offline • Built by offshore fishermen
App chart screenshot
Raw multibeam sonar High-resolution contours Works fully offline Made for offshore
Why SeaDepth

Bottom detail other charts smooth over

The app is just the window — the charts are the real product.

High-Resolution Bathymetry

Every chart is processed in-house from raw multibeam sonar — not resampled from the same recycled public datasets most apps repackage.

Bank Zoom

Zoom into individual banks, ledges, and bottom structure at a level of detail that other charts smooth right over.

Fully Offline

Download your region once and run it anywhere — no signal required miles offshore.

True Bottom Detail

Find the humps, edges, and drop-offs that hold fish, rendered in clean, readable contours.

Built by Offshore Fishermen

Designed on the water by a captain who has been day-timing off his own charts for nearly a decade.

Always Improving

New coverage and chart regions are added regularly as more of the Gulf and beyond is mapped.

See it in action

Your water, in stunning detail

Add real screenshots of your charts.

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Chart screenshot
Chart screenshot
Available charts

Coverage across the Gulf & beyond

Pick your region and download it once — every chart runs fully offline.

Western Gulf

Texas bluewater — from the beachfront to the bluewater rigs.

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Central Gulf

The Louisiana deepwater — tuna, swords, and the canyon.

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Eastern Gulf

The Panhandle edge — bottom fishing at its best.

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Florida West Coast

Hard bottom, ledges, and springs from Tampa to the Ten Thousand Islands.

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South Florida

Reefs, humps, and the wall — Miami to the Keys.

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Bahamas

Drop-offs and deep blue from Bimini to Abaco.

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View all chart regions
The difference

Charts built on the water, not at a desk

Most apps repackage the same recycled public datasets. Every SeaDepth chart is processed in-house from raw multibeam sonar by a captain who has been day-timing off his own charts for nearly a decade.

Read the SeaDepth story
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From the fleet

What anglers are saying

Seeing my own water in SeaDepth is what sold me. The bottom detail is on another level — I marked ledges I never knew were there.

[
[Customer Name][Home Port] · Swordfish

I've been fishing the same numbers for years. SeaDepth showed me three new high spots within a mile of my old ones.

[
[Customer Name][Home Port] · Yellowfin Tuna

Finally a chart built by someone who actually fishes offshore. The Bank Zoom detail is exactly what I needed for deep dropping.

[
[Customer Name][Home Port] · Tilefish
Success on the water

User catches & spotlights

Share your catch and you could be featured here.

[Fish Species]
[Angler Name][Home Port]

[Add a short success story — where they fished, what they caught, and how SeaDepth helped.]

[Fish Species]
[Angler Name][Home Port]

[Add a short success story here.]

[Fish Species]
[Angler Name][Home Port]

[Add a short success story here.]

Merch / lifestyle photo
SeaDepth gear

Wear the brand offshore

Shirts, hats, decals, and apparel are on the way.

Preview the merch

Ready to see your bottom in detail?

Download SeaDepth, open a free sample chart, and find your water.