Beautiful May trout fly fishing session in Brittany

When the flies appear, the trout gobble like crazy. A must for every fly fisher! © Enjoy Fishing / Jean-Baptiste Vidal

Like many fly fishers, I love the month of May. Spring sets in and the insects come out more regularly, encouraging the trout to come and gobble on the surface. But it's also the time of year for the famous May fly, so eagerly awaited by trout and anglers alike!

I've found a small window of opportunity to make my first dry trout with this beautiful insect that attracts so much attention!

Tandem fishing before hatching

Arriving on the water, I quickly notice that the Mayflies aren't really out yet, although every now and then an insect or two flies over the water.

So I quickly set up two flies for surface fishing with a large sedge (trichoptera) and underneath a May fly nymph, because the trout must be waiting impatiently for them!

Very quickly, I catch a trout on the dry, because a big sedge in deer always attracts a few fish.

But soon enough, the trout are mostly nymphs. A simple set-up that's too heavy to imitate the nymphal phase, when they rise to the surface to hatch.

Sandy spots, such as sandbanks, are excellent. In fact, trout settle there to wait for larvae to emerge from the bottom.

Les rivières sablonneuses sont très propices aux éclosions de mouche de mai
Sandy rivers are highly conducive to Mayfly hatchings

I'd catch a few trout this way, and might even watch some pretty trout come literally in very little water over the sand to devour the first larvae to emerge.

Hatching should start soon!

Les nymphes de mouche de mai sont très efficace en début d'éclosion
Mayfly nymphs are very effective in the early stages of hatching.

The first insects of the season!

In fact, in the late afternoon and early evening, Mayflies start to fly and a few gobbles can be observed. These are often small flies, as they become active before the larger flies, which are waiting for the right moment to emerge and take up the best positions.


The mayfly is one of the largest mayflies in our waters. It is magnificent and graceful.

No sooner had I set my fly than it was intercepted. You quickly have to lift the rod and bridle them, as there are a lot of weeds here and the trout know how to lodge in them to try and steal your company! The best trout often do the trick and it's not uncommon to break or stall in these conditions.

I used a 15° setting to restrain them and prevent my leader from twisting. A few years ago, I was able to catch some nice trout with this sub-imago imitation.

For me, this is the stage most sought after by trout, and I have an imitation that allows me to often catch trout that are active, but even the most cunning!

Une imitation de sub-imago est souvent très bien prise par les truites lors des éclosions de M. de Mai
A sub-imago imitation is often very well taken by trout during the May fly hatch.

Very active fish and a superb fishing session!

The trout are having a field day and I'm catching one after the other! What a pleasure it is to experience this magnificent spectacle every year. They're such beautiful insects, and there's always something magical about seeing a hatch of this great mayfly!

This session is like a dream. The weather is a bit stormy and wet. The first flies of May are coming out and the trout are enjoying them, but so am I, because it's not every day you fall into the right slot.

Indeed, these days, outbreaks are less predictable. Some days, there are flies everywhere. And other days, hardly any!

I'm taking a little longer than planned to enjoy this great moment. What a pleasure to be able to catch and release all these beautiful 100% wild Breton trout!

Les truites raffolent de ces modèles à basse flottaison!
Trout love these low-float models!
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