Skip to main content

Tying the Avalon Permit Fly

The secret ingredient to a Cuba grand slam: the Avalon Permit Fly.

Tying the Avalon Permit Fly
Photo Hans van Klinken

I recently caught my first saltwater grand slam a permit, tarpon, and bonefish in a single day while fishing in Cuba. While this event was special to me, what made it more exciting was my discovery that many others have been doing the same, thanks in large part to a new permit fly developed by Mauro Ginevri.

While most permit flies imitate crabs, in Cuba the permit feed heavily on shrimp, leading Ginevri to develop a shrimp pattern that sinks quickly in deeper water, swims upright, and most importantly catches fish.

So far, the Avalon Permit Fly has accounted for 134 permit in Cuba alone, and more results are starting to come in from other parts of the Caribbean. In the evenings during my visit there, I had several chats with Ginevri about his new pattern. I enjoy learning how other tiers think, and how they work. Of course we also talked a lot about the techniques and materials he used to develop his final creation.

I was privileged to learn each tying step from the original designer. Certain proportions of the Avalon Permit Fly are so crucial that if one of them is incorrect, the success of fly is degraded. I am grateful that Ginevri asked me to help him publish his pattern to prevent other tiers from incorrectly imitating it.

Mauro Ginevri was born in Civitanova Marche, Italy, in 1963. Since 2000, he has fished diligently for Cuban permit, using mostly crab and shrimp patterns, some tied by the world's most famous saltwater tiers. Many flies were also given to him by lodge guests, but due to lack of success, he began tying his own flies in 2001. Today, his greatest passion is tying bonefish, permit, and tarpon flies.

Like most other fly fishers, Ginevri noticed how easily permit become alarmed by the fly, or how they follow the fly during the first two or three strips, and then suddenly spook and change direction. At the same time, he noticed that many flies meant to fish with the hook point up, actually rolled over onto their sides when stripped. These two facts, he thought, were probably related.

It became an obsession for him to develop a shrimp pattern that sinks quickly, and stays hook up at all times, regardless of retrieval speed. He started to design and develop many creations, and each of them went through intensive tests in a swimming pool, observed while snorkeling. Underwater, Ginevri studied the action, position, mobility, sinking speed, and behavior of each prototype.

In 2007 one of Mauro's customers showed him a fly with a beaded keel system. The monofilament keel weighted with stainless steel or silver beads gives the fly extra weight, and to keeps the fly in the hook-up position while fishing.

The beads move freely on the monofilament, allowing them to clack or snap when the fly moves. This audible cue may be a trigger at the very least it does not put the fish off. The two pieces of Zonker strip tied in a delta-wing position prevent the fly from rolling over, even when retrieval speeds are changing.

The Avalon Permit Fly is a shrimp pattern, but why is it so long? While studying the flats of Cayo Largo, guides pulled a net over distances of almost 100 meters, and on nearly every run they made, discovered at least a dozen or more shrimp that were 9 centimeters or longer. That's why the Avalon Permit Fly does not come in a range of sizes the #2 hook and the material lengths provided in the recipe create a perfectly balanced fly that rides hook up, and imitates the larger shrimp permit prefer.

On April 26, 2009, Ginevri was finally satisfied with his final design, and gave the flies to six customers to try in Cayo Largo that week. The result that week was five permit landed, and overall, much better reactions to the fly. The fly has become so popular in the past year, and so credible with the guides, that only two permit have been caught at Cayo Largo using other flies.

Avalon Permit Fly

Step 1

Step 1: Insert the hook into the vise, and attach the thread. Secure dumbbell eyes on top of the shank with a series of figure-eight wraps. Use Super Glue to ensure the eyes do not twist in the powerful crushers of a permit's mouth. Secure an 8 cm section of 20-pound nylon monofilament to the top of the shank. Tie in a small bunch of Arctic fox (3 cm) to the underside of the hook shank. After the fibers are secure, trim the tips to about 1 cm.

Recommended


Step 2

Step 2: Tie in two black or wine Krystal Flash fibers one at a time on the left and right sides of the shank.

Step 3

Step 3: Tie in two Grizzly Barred rubber legs one at a time, positioned symmetrically on the left and right sides of the hook. Trim them to 5 cm. Attach two strands of Pearl Diamond Braid in the same position and trim them slightly shorter (4 cm). 

Step 4

Step 4: Tie in a large tan marabou feather by its tip at the rear of the hook shank.

Step 5

Step 5: Wrap the marabou feather forward and secure it. Cut off the excess.

Step 6

Step 6: Tie in the Zonker strips one by one on each side of the hook shank just behind the dumbbell eyes. To create the ideal delta-wing shape, apply extra tension on the last few wraps of thread.

Step 7

Step 7: Pull the Pearl Diamond Braid strands forward one at a time and secure them to the left and right sides of the hook eye. 

Step 8

Step 8: Thread four silver beads onto the monofilament keel and pull the monofilament forward to create a loop 2 cm long and 1 cm deep. Secure the monofilament at the hook eye and whip-finish. Use fluorescent orange thread to finish the head, and add a sturdy coat of head cement.


Hans van Klinken is the commander of the Royal Dutch Army Gunnery School. He has tied flies since 1976 and is the originator of the Klinkhåmer Special.




GET THE NEWSLETTER Join the List and Never Miss a Thing.

Recommended Articles

Recent Videos

For 2026, G. Loomis has introduced updated versions of its flagship Asquith Freshwater and Saltwater fly rod families. Both a...
Gear

Ross Purnell on G. Loomis's Updated Asquith Rods

Ben Furimsky is the owner and operator of The Fly Fishing Show, the largest consumer show in the fly-fishing industry. The Fl...
How-To/Techniques

Ben Furimsky: Owner and Operator of The Fly Fishing Show

Blane Chocklett breaks down the differences between two innovative fly patterns—the Game Changer and the Jerk Changer. While ...
How-To/Techniques

Blane Chocklett Explains the Jerk Changer

From his iconic Melon Quill PMD dry fly to groundbreaking techniques like stripping and dyeing hackle quills, legendary fly t...
How-To/Techniques

Fly Tier's Bench: AK's Melon Quill PMD Dry Fly

In a matter of just a couple of months, Blane Chocklett caught his personal best striper and then his all-time best redfish o...
Fly Tying

Blane Chocklett: Secrets of the Jerk Changer

The Bou Craw was developed as an expendable alternative to the more involved crayfish patterns. It is a suggestive crayfish p...
Gear

Tying the Bou Craw

Bill Skilton started fly fishing at an early age with tutelage from Limestone Legends such as Charlie Fox, Vince Marinaro, an...
How-To/Techniques

Bill Skilton on Pennsylvania fly fishing, terrestrials, and raising chickens

Yellowstone National Park's supervisory fish biologist, Dr. Todd Koel, has led the Yellowstone Native Fish Conservation Progr...
News

Fly Fisherman's 2025 Conservationist of the Year: Todd Koel

One of the most versatile, experienced saltwater guides of all time, Capt. Paul Dixon has spent decades fishing from Long Isl...
Destinations/Species

Paul Dixon

In this video, Fly Fisherman contributing editor and veteran fishing guide Blane Chocklett details how to row a drift boat or...
Destinations/Species

Fly Fisherman's Rowing Basics: Oar Work

From giving priority to wading anglers and being courteous at the ramp to safety gear and water hazards, Fly Fisherman contri...
How-To/Techniques

Fly Fisherman's Rowing Basics: Safety & Etiquette

From understanding the clock system to line management, keeping your oarsman happy, and “fishing the future,” Fly Fisherman c...
Gear

Fly Fisherman's Rowing Basics: Fishing Tips

Fly Fisherman Magazine Covers Print and Tablet Versions

GET THE MAGAZINE Subscribe & Save

Digital Now Included!

SUBSCRIBE NOW

Give a Gift   |   Subscriber Services

PREVIEW THIS MONTH'S ISSUE

Buy Digital Single Issues

Magazine App Logo

Don't miss an issue.
Buy single digital issue for your phone or tablet.

Get the Fly Fisherman App apple store google play store

Other Magazines

See All Other Magazines

Special Interest Magazines

See All Special Interest Magazines

GET THE NEWSLETTER Join the List and Never Miss a Thing.

Get the top Fly Fisherman stories delivered right to your inbox.

Phone Icon

Get Digital Access.

All Fly Fisherman subscribers now have digital access to their magazine content. This means you have the option to read your magazine on most popular phones and tablets.

To get started, click the link below to visit mymagnow.com and learn how to access your digital magazine.

Get Digital Access

Not a Subscriber?
Subscribe Now

Enjoying What You're Reading?

Get a Full Year
of Guns & Ammo
& Digital Access.

Offer only for new subscribers.

Subscribe Now

Never Miss a Thing.

Get the Newsletter

Get the top Fly Fisherman stories delivered right to your inbox.

By signing up, I acknowledge that my email address is valid, and have read and accept the Terms of Use