The Diver's Atlas
Sites. Species. Logs.
Discover 10,000+ dive sites worldwide. Download your dive computer in seconds. Everything stays on your device.
iPhone · Free · No account required
Sites Map
10,000+
Dive Sites
50+
Compatible Computers
15
Languages
Sites
Know before you go.
Tap any site for the full picture: depth range, typical visibility, common sea life, and a detailed brief in your language. 10,000+ sites indexed — from the Great Barrier Reef to your local quarry.
Site Details
Logs List
Dive Logs
Your complete logbook. Minus the paper.
Every dive in one scrollable list, grouped by month. Date, depth, duration, site — everything at a glance. Search and filter across your entire history instantly.
Profiles
See the shape of every dive.
When you download from your dive computer, Below renders the full depth profile — depth over time, water temperature, NDL, gas switches, ascent rate. Every sample, every moment of the dive.
Dive Detail
Compatibility
Works with the computer you already own.
Connect via Bluetooth and pull dives directly from your Shearwater, Suunto, Oceanic, Mares, Aqualung, or Scubapro. Garmin dives import via FIT files. Apple Watch data comes in through HealthKit.
Already logging somewhere else? Import from MacDive, Subsurface, or any UDDF file.
See the full compatibility list →Data Import Flow
Collections View
Collections
Plan trips. Save favorites. Stay organized.
Group dive sites into collections — a trip to Palau, your local spots, a wishlist of places you haven't been yet. Add notes, download for offline access, share with dive buddies.
Your Journey
Every dive adds up.
Total dives, hours underwater, deepest depth, sites visited. Dives by year, depth trends over your career. Your complete diving history in one place.
Profile / Stats View
No account required.
Your dive logs live on your device and sync between your own devices via iCloud — we never see them. Export everything as UDDF anytime. Below doesn’t lock you in.
On-device
Private
Export anytime
FAQ
Common questions.
Which Shearwater computers work with Below?
All current Shearwater models via Bluetooth: Perdix 2, Perdix AI, Teric, Petrel 3, Petrel 2, Nerd 2, and Swift. Connect and pull your full dive history in seconds.
Does Below require an account?
No. Below works without an account. Your dive logs are stored on your device and synced between your own devices via iCloud. We never receive your dive data.
Which Garmin Descent models are supported?
Garmin Descent Mk3, Mk3i, Mk2S, and G1 via FIT file import. Export your dive FIT files from Garmin Connect and import directly into Below.
What does Unlimited unlock?
$19.99/year unlocks depth profile charts, photo galleries, and offline site cache. Dive logging, site discovery, BLE import, and UDDF export are always free.
Can I import from MacDive or Subsurface?
Yes. Import your complete dive history from MacDive SQLite exports, Subsurface XML files, or any UDDF file. Your existing logs come in with full metadata intact.
What happens to my data if I cancel?
Your dive list and raw UDDF export remain accessible forever, free. Depth charts and photo galleries lock until you resubscribe — but you never lose your data.
Does Below work offline?
Yes. Below is offline-first — logging, BLE import, and previously viewed sites work without internet. Unlimited subscribers can pre-download site data for remote destinations.
How does Below compare to Oceanic+?
Oceanic+ requires Oceanic hardware ($500+). Below works with any dive computer via Bluetooth or file import. No hardware lock-in, $19.99/year vs $79.99/year (U.S. pricing).
Start logging.
Available free on iPhone.
$19.99/year unlocks depth charts, photo galleries, and offline site cache. 7-day free trial.