What Do Sea Fishing and Digital Marketing Have in Common?

If the hair on the back of your neck stands up at the mention of terms like GA4, GTM, Landing Page, Meta Ads or ROAS, I get it. They sound like made-up buzzwords agencies use just to squeeze another few hundred euros out of your pocket at a meeting.

But if you've ever rigged a leader, trolled a lure at dawn, or waited for a good sea bream to bite at your favorite spot, you actually already know all of it. The principles are exactly the same. The only difference is that at sea you're fighting fish, and in marketing you're fighting customers — though both are equally suspicious the moment you offer them something.

Here is how fishing logic connects real marketing tools with fishing terms:

1. Product or service = The fish you went out to sea for

It's impossible to rig your gear if you don't know what you're after. You don't go after dentex with a live bait rig for bogue, and you don't troll a heavy lure if you want sea bass. Your product determines absolutely everything: what kind of boat you need, how deep you go, how much fuel you'll burn, and whether you come home with a story or with a catch.

2. Offer = Juicy bait and good chum

A fish doesn't bite an empty hook, and a customer doesn't leave their money just because you have a "nice logo." That's why it's crucial to understand exactly what you're throwing into the sea:

• Traffic campaign (Driving traffic) = Chum in the water
  Chum is only there to create a buzz and pull fish in close to the boat. In marketing, that's a Traffic campaign; you cast the chum wide so as many people as possible even hear about you and land on your website. Everyone's there, there's plenty of movement, but nobody's bitten yet.
• Conversion campaign (Sales or inquiries) = A good chunk of squid or a big sea worm
  That's a juicy bait with the hook in exactly the right spot. You're not just interested in fish circling the boat — you want one specific big one to drop its guard and bite. In marketing, that's a Conversion campaign: an ad aimed exactly at the people you know are ready to buy the product or send an inquiry right now.

If you only chum (only push traffic to the website), you'll create a buzz with no catch. If you drop juicy bait with no chum (targeting conversions on an empty fishing ground), you'll wait a long time. Top-tier marketing combines both.

3. Targeting and audience = Good fishing spots and reading the sonar

An experienced angler doesn't cast a line into empty water in the middle of a channel where there's only mud and no movement or food. They know where the schools are, where the currents run, and how to read the sonar. Targeting in advertising is exactly that: setting up your radar so you drop your bait right in front of the people who, at that exact moment, are looking for precisely what you offer. Everything else is pouring fuel into the void.

4. Meta and Google Ads = Trolling vs. squid season

These are two completely different techniques at sea:

• Facebook and Instagram (Meta Ads) are like trolling. You sail along, drag a lure through the water, and flash it in front of fish that weren't planning to eat at that moment at all. But when something good flashes right in front of its nose while it's scrolling the feed on the couch — it lunges and bites.
• Google Ads is going out for squid in season. You drop your jig on your favorite spot and wait for the catch. When someone types "emergency plumber Zagreb" or "outboard motor repair" into Google, they're not looking for entertainment. That's a hungry fish circling the bottom, actively looking for a hook. All you have to do is be first on that spot.

5. Website / Landing page = Your boat and its deck

Once the fish has bitten and you've brought it up to the boat, the most critical moment arrives — getting it over the rail. Your website (or landing page) is your deck. If your deck is tangled with ropes, if a bottleneck of clutter is in the way, or you don't have a net ready to scoop up the big one the second it clears the water, the fish will fall off the hook in the final second. The page has to be clean, fast, and hassle-free: the price, the terms, and a big, clear "Buy" or "Call now" button need to be visible right away.

6. GTM (Google Tag Manager) = The full tackle, swivels, and the sensor on the rod

What is GTM, really, on a boat? It's all those tiny, invisible bits of gear that connect the rod, the line, and the hook. GTM is the mechanism that makes sure every swivel holds, that the line doesn't tangle, and that you know exactly the moment the hook touched bottom. Without it, the hook just hangs in the water and you have no idea what's happening down in the depths.

7. GA4 (Google Analytics) = The catch log and sounder data

GA4 is your logbook from the sea. It doesn't catch the fish for you, but it tells you exactly how many fish came aboard, from what depth, at what time of day, and which bait they were biting best on. Without analytics, you're fishing blind, guessing all over again every time why they bit yesterday and not today.

8. Data Studio = The fishfinder / sonar display in the cabin

If GA4 is the sounder itself and the raw data down in the deep, then Data Studio is that big, clear screen in the boat's cabin. Forget digging through thousands of dry spreadsheets and numbers. Looker Studio takes all the raw data and arranges it into one clear, visual dashboard: at any second, the screen shows you the depth, the water temperature, fuel consumption, and whether the trip is in the black or the red.

9. Conversion rate = The ratio of bites to catches on deck

Had ten bites on the rod during the morning, but only landed two fish in the boat? Your ratio is 20%. In marketing, that's the conversion rate: if 100 people clicked your ad and landed on your website, and two actually bought — you have a 2% conversion rate. If that number is low, either your hook is dull (a poor website) or your strike wasn't timely (an overcomplicated checkout).

10. ROAS = How much fuel you burned vs. how much fish you brought home

The cleanest math at sea. You spent 50 euros on fuel and chum, and brought home 200 euros worth of fish? Your ROAS is 4x (or 400%). In marketing, this number tells you, without sugarcoating it, whether you made money that day or just made noise on the water at your own expense.

Conclusion: What does it all look like put together?

There's no long-term luck in either fishing or marketing. It's all about having your gear in order and keeping a cool head:

• The best boat and the most expensive sonar screen in the cabin (Data Studio) are worthless if your bait is dull and stale (a weak offer).
• The best bait in the world is worthless if you drop it at 80 meters where there's nothing, because you never switched on the sonar (targeting).