Fish Deeper Premium

Fish Deeper Premium that will give users access to more than 50 000 lakes across the globe, help plan their fishing trips using weather forecast, marking favourite spots and many more amazing features. If you haven’t heard about it yet, please find more info here:

Respect legends, but trust data.

Let’s face it, without the ancient maps we wouldn’t be here. But today we trust and use data to find the best places to fish. Fish Deeper is your modern address book for the fish you’re looking for. Explore lake maps and know every island, pit, depth, and more on any device!

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What’s bathymetry?

Bathymetry is the water depth measurement in lakes, seas, or oceans. Such maps are made with echosounders (sonars) which send beams of sound and show real-time data on depth, bottom contour and structure, vegetation and aquatic life on a screen.

Depth maps are great for fishing because they help find the best locations to fish and target particular species based on depth and terrain. It’s a must-have tool for any modern angler.

Colours indicate depth – from light blue (shallow) to dark blue (deep).

Contours with bigger spaces in between show a more gradual slope.

Contours that are closer to each other indicate steep slope of the terrain.

How to identify fishing spots?

Depending on the season and fish type, you can have a pretty good idea where to catch fish on a particular lake.

Hidden islands

Also known as underwater islands or sections of a lake bottom that rise gradually. These bottom structures tend to have certain types of fish all year long. Ideal for feeder anglers looking for “tables” to feed the fish properly.


Rapid declines in depth. Steep drop offs, especially with some wrinkles, twists and curves are where fish tend to travel between deep and shallow waters. Drop-offs are also the main thing to look for when fishing for carp – as it’s where carp can move up and down in the water.


Slowly declining lake areas, which then drop off into the depths. In larger lakes, they may seem like a bump in the bottom. Some lakes only have one or two shoal sites. Shoals tend to have thicker vegetation where insects and baitfish live, which larger fish feed on. “Pits” at the bottom (like tables but going down, not up) are a good place for bream/some whitefish

Data at your service.

Fish Deeper Premium is designed to improve your fishing experience, so you can easily and quickly find the best fishing spots. It is based on a large amount of depersonalized scan data gathered from our Deeper Sonar user community. We put a lot of time and effort to process this data1, removing any references to personal and sonar information, and constantly improving the quality and precision with continuously incoming new depth data.

50 000

fishing spots


countries with depth maps

220 000

of users data gathered from

1 million ha

of area covered

2 million

scan sessions used

1.5 billion

coordinates with depth data

20 days

time spent to generate maps

2.8 GB

of data available

Get Fish Deeper.

Use it completely free, and if you want to expand your possibilities and access global depth maps – redeem or buy Fish Deeper Premium.


Enjoy amazing features. Free of charge. Unlock even more with Premium anytime.


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Owner’s Premium Redeem

Claim 3 free months of Premium membership with your sonar.

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12-Month Premium Plan

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Free 7-day trial.

1-Month Premium Plan

Pay only €4.99 for a monthly Premium subscription.


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About richardhandel

I would like to give a brief snap shot of my life and introduce myself; My name is Richard Handel and was born in 1965 in Suffolk. I have worked as a UK Operation & Intermodule Manager for a shipping company. I live in Hampshire now and am married with 2 young children, both girls so I am a bit outnumbered even the cat is a girl! I have been fishing since I was about 7 years old. I started on small local rivers in Suffolk, then moved onto gravel pits and then carp fishing. My personal best is a 39.08 mirror, over recent years I have started river fishing again, on the Hampshire Avon, this is a nice break from the carp lakes. My life has turned a big corner this year, the company I was working for relocated their Operation centre to Estonia. I was offered a job at the head office in London. This would have meant a 5 day commute and working in Stratford. As a family, we did not fancy this, as I would hardly spend any time with the children (and the Mrs). So after 22.5 years, I was given a nice redundancy package and with my wife is working full time. I became the house husband. This has meant a complete turn around in my fishing, as I can pick and choose when I go. I have found a splendid new syndicate to fish this year, which includes 5 lakes and some 8 miles of river with only 150 members. It's an amazing change to the way I am able to fish. I am now trying to start my own tackle business and make a bit of a name for myself in the world of fishing, as I have retired from real work. Richard
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